When your surrogate becomes pregnant, a new and unfamiliar chapter begins. You're becoming parents — but the pregnancy is happening in someone else's body, in another city, unfolding week by week in a way that can feel both exciting and strangely abstract.
This guide is written specifically for intended parents who aren't carrying the pregnancy themselves. It walks through the full 40-week journey by trimester — what's happening medically, what milestones matter most, when you should plan to be present, and how to stay meaningfully connected to a pregnancy you're not physically experiencing.
Understanding the timeline doesn't just reduce anxiety. It helps you show up for your surrogate in the right ways, at the right moments, and arrive at the birth as prepared as possible.
Before the Pregnancy: The Transfer and Confirmation Phase
The pregnancy timeline for intended parents begins before the surrogate is technically pregnant. Two milestones in this phase are especially important.
The Embryo Transfer
The embryo transfer is the procedure in which your embryo — created through IVF using your genetic material or donor eggs and sperm — is placed into your surrogate's uterus. It is a quick, minimally invasive procedure, similar to a routine gynecological exam, and takes about 15 to 20 minutes.
Many intended parents choose to attend the embryo transfer. It is one of the earliest and most emotionally significant moments in the journey — the first time your future child is, in a sense, in the room. If you plan to be there, coordinate with your agency or clinic well in advance, as the transfer date is not always known until a few days before it happens.
Beta Testing: The First Confirmation
Approximately 10 to 14 days after the transfer, your surrogate has a blood test called a beta hCG test. This measures pregnancy hormone levels. A positive result means implantation occurred. A second beta test a few days later confirms that the levels are rising appropriately — a strong indicator of a healthy early pregnancy.
This waiting period — the "two-week wait" — is one of the most emotionally charged stretches of the entire surrogacy journey. Many intended parents describe it as more anxious than any point in the IVF process itself. Staying in gentle communication with your surrogate during this time matters — she is experiencing it alongside you.
What You Can Do
Send a thoughtful message to your surrogate during the two-week wait. Acknowledge that you're thinking of her and grateful for her. You don't need to manage her expectations or your own out loud — just be present.
First Trimester
Weeks 1–12 · The Foundation
The first trimester is the most medically watched period of the pregnancy — and the one where intended parents are often the most anxious. Most of the monitoring happens at the fertility clinic before your surrogate transitions to her own OB, so the communication is frequent and data-rich.
Weeks 4–6: Heartbeat Confirmation
Around week 6, your surrogate will have her first ultrasound at the fertility clinic. This is the heartbeat confirmation scan — the moment the pregnancy becomes visually real. The fertility team will confirm the heartbeat and check that the gestational sac and embryo are developing normally.
Many clinics will share an ultrasound image or short video clip with intended parents, even if you're not physically present. Ask your clinic or agency coordinator about this in advance. If you are able to attend, do — hearing your baby's heartbeat for the first time is a milestone many intended parents describe as transformative.
Milestone: Week 6 heartbeat confirmation. This is the moment base surrogate compensation payments typically begin.
Weeks 6–10: Fertility Clinic Monitoring
During the first several weeks of pregnancy, your surrogate remains under the care of the fertility clinic rather than her own OB. The clinic monitors hormone levels, conducts additional ultrasounds, and confirms the pregnancy is progressing normally. You may receive regular updates from your agency coordinator during this phase.
This is also the phase where your surrogate may experience morning sickness, fatigue, and other early pregnancy symptoms. Checking in with warmth and without pressure is appreciated — she may not always feel well, and knowing you're thinking of her matters.
Weeks 8–10: Graduation to OB Care
Around weeks 8 to 10, the fertility clinic "graduates" your surrogate to her own obstetrician or midwife. This is a meaningful milestone — it signals that the early pregnancy is stable and that standard prenatal care can begin. It also means less frequent monitoring appointments, which can feel like a shift in the rhythm of updates you've been receiving.
This is a good time to discuss communication expectations with your surrogate. How often will she share updates? Will she send photos from appointments? Will you have access to appointment summaries? These conversations go more smoothly when they happen proactively, not reactively.
Week 10–12: First Trimester Genetic Screening
Between weeks 10 and 13, your surrogate will typically undergo first trimester genetic screening. This may include a cell-free DNA test (also called NIPT or non-invasive prenatal testing), which screens for chromosomal conditions such as Down syndrome, trisomy 18, and trisomy 13 using a maternal blood draw. It can also often determine the baby's sex.
The results of this screening are about your baby and will be shared with you. Discuss in advance with your surrogate and your attorney how genetic testing decisions and results are handled — this should be addressed in your surrogacy contract, particularly regarding what happens in the event of an unexpected result.
Week 12: End of the First Trimester. The risk of miscarriage drops substantially after week 12, and most intended parents feel a meaningful shift in confidence at this point.
Second Trimester
Weeks 13–27 · The Stable, Active Middle
The second trimester is often the most emotionally comfortable stretch for intended parents. The high-risk early period is behind you, the pregnancy is visible and active, and there are meaningful milestones that make the baby feel increasingly real. It's also the trimester where your relationship with your surrogate typically deepens most.
Week 16: The Anatomy Scan Approaches
Around week 16, your surrogate may have a routine OB appointment that includes listening to the baby's heartbeat with a doppler. This is a wonderful appointment to attend if geography allows — hearing the heartbeat through a handheld device, rather than on an ultrasound screen, has its own distinct quality. Ask your surrogate if she'd be comfortable having you join, in person or via video call.
Weeks 18–20: The Anatomy Scan — Plan to Be There
The anatomy scan, also called the 20-week scan or mid-pregnancy ultrasound, is one of the most significant appointments of the entire pregnancy. A sonographer examines the baby in detail — measuring limbs, checking organ development, evaluating the placenta and amniotic fluid, and confirming that growth is on track. The full scan typically takes 30 to 45 minutes.
This is the appointment most intended parents prioritize attending in person. You will see your baby's face, hands, and spine. You will watch them move. If you haven't found out the sex yet through genetic testing, this is often the moment you learn it.
Plan ahead: The anatomy scan at weeks 18–20 is the single most important appointment to attend in person during the second trimester. Book travel as early as possible once the date is confirmed.
Weeks 20–24: Baby Becomes Undeniably Real
Sometime around weeks 18 to 22, your surrogate will begin feeling the baby move. These early movements — called quickening — are something she experiences physically that you cannot. For intended parents, this can bring a mix of awe and wistfulness. Asking your surrogate to describe what she feels, or to send a message when the baby is particularly active, helps bridge that distance in a meaningful way.
Some surrogates and intended parents use apps that allow shared pregnancy tracking, or simply exchange regular photos and voice messages. There is no right or wrong approach — what matters is that you find a rhythm that feels connected and natural for both of you.
Week 24: Viability Milestone
Week 24 is a medically significant milestone. At this gestational age, a baby born prematurely has a meaningful chance of survival with intensive neonatal care. While no one wants to think about premature birth, reaching week 24 is a quiet but important threshold that medical teams and experienced intended parents recognize as significant.
Weeks 24–27: Glucose Screening and Growth Checks
During this stretch, your surrogate will have a glucose tolerance test to screen for gestational diabetes. This is a routine part of prenatal care for all pregnancies. If gestational diabetes is identified, it is manageable with dietary changes or medication, and your OB will guide your surrogate through it. It is worth knowing the results and following along, as gestational diabetes can affect delivery planning.
Regular OB appointments continue approximately every four weeks during the second trimester. Not every appointment requires your presence, but staying informed through your surrogate's updates keeps you connected to the pregnancy's progress.
Third Trimester
Weeks 28–40 · The Final Stretch — Preparing for Birth
The third trimester is when the abstract becomes concrete. Your baby is growing rapidly, appointments become more frequent, birth planning begins in earnest, and the logistics of being present for delivery move to the front of your mind. This is the trimester that demands the most active practical preparation from intended parents.
Weeks 28–32: Appointments Accelerate
From week 28 onward, your surrogate's OB appointments move to every two weeks. This increased frequency reflects the closer monitoring that happens in the final stretch — checking the baby's position, monitoring growth, assessing fluid levels, and tracking your surrogate's blood pressure and overall health.
Around week 28, a Group B Streptococcus (GBS) test may be conducted, and your surrogate will also be screened for preeclampsia — a pregnancy complication involving high blood pressure that requires close monitoring and, if severe, can affect delivery timing.
This is also when the baby's position starts to matter. Most babies are head-down by week 30 to 32, which is the optimal position for vaginal delivery. If the baby is breech (feet-first), the OB will discuss options, which may include an external cephalic version (a manual procedure to turn the baby) or planning for a cesarean delivery.
Week 32–34: Third Trimester Ultrasound
Many OBs schedule a growth ultrasound around weeks 32 to 34 to confirm the baby is growing on track and that amniotic fluid levels are healthy. This is another appointment worth attending if possible — it's one of the last detailed looks at your baby before birth, and at this stage, the baby's features are fully formed and clearly visible on the scan.
Week 36: Weekly Appointments Begin — Start Your Travel Planning
From week 36, OB appointments typically move to weekly. The baby is considered early-term at week 37 and full-term at week 39. Labor can begin at any point from week 37 onward, which means your window for guaranteed pre-birth arrival is narrowing.
Week 36 is your practical planning deadline. By this point you should have:
- Confirmed the hospital or birth center where delivery will take place
- Arranged accommodation near the delivery location for the final weeks
- Discussed your birth plan and delivery preferences with your surrogate and her OB
- Confirmed your pre-birth order is filed and legally in order with your attorney
- Packed a bag and identified the fastest route to the delivery location
- Set up a notification plan with your surrogate
Travel planning note: Most intended parents who live far from their surrogate plan to be in her city by week 37 at the latest. First labors are less predictable; subsequent labors often progress faster. Don't cut it too close — missing the birth is a moment you cannot get back.
Week 36: Group B Strep Results and Birth Prep
Around week 36, your surrogate will be tested for Group B Streptococcus (GBS) if not already done. GBS is a bacteria that can be present in the birth canal and, if positive, requires IV antibiotics during labor to protect the baby. This is routine and manageable — but knowing the result helps you understand what to expect during labor.
This is also when conversations about birth preferences become more concrete. Does your surrogate plan to have an epidural? What is her stance on induction if labor doesn't begin naturally? Who will be in the delivery room? How do you want the moment of birth to be handled — will you cut the cord, will the baby be placed on your chest first, will there be a brief moment of skin-to-skin between your surrogate and the baby?
Weeks 38–40: The Final Weeks
In the final two weeks, appointments may move to twice weekly. The OB monitors the baby's heart rate, checks amniotic fluid levels with a non-stress test or biophysical profile, and watches for any signs that the placenta is aging or that delivery should be induced.
If the baby has not arrived by week 40 to 41, the OB will typically recommend induction. Post-term pregnancies carry increased risk, and most providers do not allow pregnancies to continue past 41 to 42 weeks without medical justification.
The waiting in these final weeks is both the hardest and the most beautiful part. You are days away from meeting your child. Stay close to your surrogate. Check in daily. Make sure she knows how grateful you are — not just for the pregnancy, but for who she has been throughout this journey.
Birth and the Hospital: What to Expect as an Intended Parent
Arriving at the hospital as an intended parent is an experience unlike any other. You are there to welcome your child into the world, but you are also a guest in a medical environment that is primarily focused on your surrogate's care. Understanding what to expect helps you be present without being in the way.
Arriving at the Hospital
Your surrogate will notify you when labor begins or when she is heading to the hospital. Depending on how close you are, you may arrive before or after she is admitted. Most hospitals allow intended parents in the delivery room, but this should be confirmed with the hospital and your surrogate's OB in advance — policies vary, and some hospitals require documentation of your legal relationship to the baby.
Bring a copy of your pre-birth order or legal parentage documentation to the hospital. Give a copy to the labor and delivery nurse when you arrive. This ensures the hospital staff treats you as the legal parents from the moment your baby is born.
During Labor
Labor can be short or very long. Be prepared for the possibility of many hours of waiting. Your role is to support your surrogate, follow her lead on how she wants you involved, and let the medical team do their work. Some surrogates want intended parents closely present throughout; others prefer more privacy during active labor and want you in the room only for the birth itself.
Bring snacks, a phone charger, and something to occupy the waiting time. Be emotionally present for your surrogate even when there's nothing practical to do — your presence and gratitude matter to her.
The Birth
When your baby is born, the experience is genuinely overwhelming for most intended parents — often more so than they expected. Cry if you need to. This is the moment you've been working toward, sometimes for years.
Your birth plan should have established whether you will cut the cord, whether there will be immediate skin-to-skin contact between you and the baby, and how the first moments in the room will be handled. Most delivery teams are experienced with surrogacy births and will follow your plan. If anything feels unclear in the moment, calmly ask the nurse.
After Birth: The Hospital Stay
After delivery, the baby typically stays with you in a postpartum room rather than with the surrogate, unless your birth plan specifies otherwise. Your surrogate will be recovering in her own room and will need rest and medical care. Visit her — not just once, but genuinely. Bring flowers. Sit with her. Thank her in person and with your whole heart.
The hospital stay is typically one to two days for a vaginal birth and three to four days for a cesarean. Before discharge, the nursing staff will verify your legal documentation and ensure your names are on the paperwork. Your baby's birth certificate, if in a pre-birth order state, will list you as the legal parents.
Staying Connected Throughout the Pregnancy
One of the most common pieces of advice from experienced intended parents is this: don't let the pregnancy feel like something that's happening to you passively. Find ways to be actively present even when you're not physically together.
Ways to Stay Connected
- •Send a care package to your surrogate during the first trimester when she's likely feeling her worst — ginger candies, a cozy blanket, a handwritten note go a long way
- •Ask to be on a video call during key appointments when you can't attend in person
- •Mark the milestones your surrogate reaches — a text, a small gift, or a card at week 12, at the anatomy scan, at viability, matters
- •Ask thoughtful questions — not just "how are you feeling" but "what has surprised you most about this pregnancy"
- •Share your excitement about becoming parents — your surrogate carried this baby knowing it was for you; hearing your joy affirms that her sacrifice is meaningful
Remember: Your surrogate is experiencing this pregnancy physically, but you are experiencing it emotionally just as deeply. Both experiences are real and valid — and acknowledging hers, alongside your own, is what makes the relationship between surrogate and intended parent one of the most remarkable human bonds there is.
At-a-Glance: Key Milestones for Intended Parents
Ready to Take the Next Step?
The pregnancy journey is one of the most extraordinary parts of surrogacy. Being prepared for each stage helps you show up for your surrogate and fully experience this unique path to parenthood.