Your embryos are already frozen. The hard part — stimulation, retrieval, the lab call — is behind you, and now there is a stretch of waiting before transfer day. It is the one window where couples ask what they can usefully do. Here is what a frozen embryo transfer (FET) cycle actually asks of your body, what a supplement can and cannot do, and the daily AGO combo couples in the US and Canada use to support everyday cycle, uterine and sperm wellness alongside their clinic protocol.
👉 FET on the calendar? Get a combo mapped to your protocol. Get your FREE personalized combo plan →
Why a FET cycle is different from a fresh IVF cycle
Same clinic, very different job list — and that changes what is worth your attention.
- Egg retrieval is done. The embryos were made from eggs and sperm collected months ago, so this cycle is not about egg count — it is about your body being ready to receive.
- The focus shifts to the uterus and the cycle. Your clinic tracks the endometrial lining and hormone timing to schedule the transfer — background reading in endometrial lining and fertility.
- Medicated or natural. Some FETs run on prescribed estrogen and progesterone, others follow your own ovulation. Which one you are on determines every timing question below.
- His side still counts — for next time. If more retrievals may follow, his 90-day sperm window is worth running now rather than later.
What supplements do — and what only your clinic does
No dietary supplement improves implantation, thickens the endometrial lining, changes the outcome of a frozen embryo transfer, prevents pregnancy loss, or replaces the estrogen, progesterone or other medication your clinic prescribes. Anyone marketing a product that way is selling you hope, not evidence. Your embryologist and fertility doctor own this cycle.
What AGO products are: dietary supplements designed to support everyday cycle, uterine and sperm-cell wellness — the daily-nutrition layer running alongside clinic care. No outcome is guaranteed, including pregnancy.
When to start — and when your clinic may ask you to pause
This is the practical part, and it is the part most product pages skip.
- The months before are yours; transfer week is theirs. Most couples run their combo through the weeks leading up to the cycle, then follow clinic instructions once medication starts.
- Hand over the labels. Give your nurse or doctor the full ingredient list before your baseline appointment — some clinics ask patients to stop specific supplements before or after transfer.
- Expect the pause request, and honour it. If your clinic says stop, stop. That instruction always outranks anything on this page.
- Keep prenatal folate going unless told otherwise — it is the one thing almost every protocol keeps in place.
- Do not add anything new in the two weeks after transfer without asking first — see the two-week-wait guide.
The AGO combo couples use in the months before a FET
Once your clinic has seen the labels and confirmed timing, this is the routine most customers settle on:
- AGO Mom — the preconception base, designed to support everyday egg-cell and preconception wellness. See AGO Mom.
- AGO Eva — designed to support hormonal balance and cycle comfort in the run-up months. Compare in Mom vs Eva.
- AGO Tumor — the option women with fibroids or another uterine diagnosis add for everyday uterine wellness; see the lining support combo.
- AGO Dad + Hàu Biển (Sea Oyster) for him — worth running if another retrieval is possible; see Dad vs Sea Oyster.
See the full AGO range and combo pricing →
How to start — and your free personalized plan
- Step 1: Write down your transfer date if you have one, whether the cycle is medicated or natural, and every medication you have been prescribed.
- Step 2: Take the supplement labels to your nurse and agree in writing what continues and what pauses.
- Step 3: Start the core pair — AGO Mom + AGO Eva — in the months before the cycle, adding AGO Tumor if you have a uterine diagnosis.
- Step 4: Run his 90-day window with AGO Dad if further retrievals are on the table.
- Step 5: Send us your protocol dates — our care team will map a combo around them, free.
Related reading: the IVF and IUI prep couple kit, egg quality before IVF, and trying again after a failed transfer.
AGO products are dietary supplements designed to support wellness. They do not improve implantation, do not thicken the endometrial lining, do not influence the result of an IVF or FET cycle, do not prevent pregnancy loss, and do not replace prescribed medication. Always follow your fertility clinic’s instructions. The easiest next step is a free, no-pressure consultation with our care team.