What is the waiting period after a vaginal birth?
Most fertility clinics require at least six months between a vaginal delivery and an embryo transfer. Some partner clinics apply a longer standard, closer to the 18-month interval ACOG recommends between a delivery and the next conception.
The clock runs from your delivery date to the transfer date, not to your application. That difference works in your favor, because the steps before a transfer take months. Apply when your youngest is about six months old and the timing usually works out.
| Situation | Minimum interval to transfer (clinic) | ACOG recommendation | When to apply |
|---|---|---|---|
| Vaginal birth | At least 6 months | 18 months between delivery and the next conception | When your youngest is about 6 months old |
| C-section | At least 12 months; some clinics require 18 | 18 months between delivery and the next conception | About 6 months after the C-section |
| Loss after 20 weeks | Set by the clinic after review of the cause | Interval advised by your OB based on the cause | After your OB has explained the cause and cleared you |
| Delivery with complications | Reviewed case by case | 18 months between delivery and the next conception | After your postpartum checkup, once records are available |
What is the waiting period after a C-section?
Most clinics require at least 12 months between a C-section and an embryo transfer. Some require 18.
A C-section is surgery on the uterus, and the uterus heals with a scar. The longer wait gives that scar time to heal fully before it has to stretch again. Mark Silverberg, DDS, MD, reads the operative report from each C-section, including the type of incision and how your recovery went. See surrogacy after a C-section for how many C-sections PLS accepts.
Why ACOG recommends an 18-month interval
ACOG recommends an interval of at least 18 months between a delivery and the next conception. It advises against intervals shorter than six months.
The reason is the next pregnancy's outcome. Short intervals between pregnancies are linked to a higher risk of preterm birth and low birth weight. A pregnancy also draws on your body's stores of nutrients such as iron and folate, and those take time to rebuild. Your body recovers in stages: the uterus returns to size within weeks, but full recovery, especially after surgery or a complicated birth, takes much longer.
A surrogate pregnancy follows the same biology. Some partner clinics apply the 18-month standard to surrogates. Others use the shorter minimums above. Either way, the clinic that will do your transfer sets the rule.
Can you apply before the waiting period ends?
Yes. Private Label Surrogacy accepts applications before the waiting period ends, because the steps before a transfer can run while your body recovers:
- Screening, usually one to two months, depending mainly on how fast your records arrive.
- Matching, about six months today.
- Legal and medical foundations, including your contract and escrow, one to two months.
- The medical cycle, two to three months before the transfer itself.
Added together, those steps often cover the minimum interval.
You can submit a prescreen while you are pregnant, but PLS does not begin screening until after you deliver and complete your postpartum checkup.
What your OB needs to confirm
Before the clinic will schedule your medical cycle, three things need to be in place:
- Your postpartum checkup is complete, with a note from your OB confirming you have recovered.
- You have weaned. Clinics do not start fertility medications while you are breastfeeding. See surrogacy while breastfeeding.
- Your regular cycles have returned. A predictable period shows your hormones have settled.
You do not have to collect your delivery records yourself. You sign a release and PLS requests them. Dr. Silverberg reads them and writes a physician medical summary that goes to the intended parents' clinic.
How PLS schedules screening around recovery
Tell PLS your delivery date, how you delivered and whether you are nursing. Your case manager uses those three facts to plan.
The aim is simple: no step waits on another without reason, and no step happens before your body is ready. Records can be requested and reviewed, the psychological evaluation and background check completed, and matching started while you recover. The clinic's medical screening and the medical cycle are timed so the transfer falls after the clinic's minimum interval.
The same intervals apply between surrogacy journeys. If you are an experienced surrogate planning another journey, the clock starts at your surrogate delivery. See repeat surrogates.
If your youngest is about six months old and you meet the other surrogate requirements, start at See if I qualify.