Three rounds of Clomid. Then Letrozole. And the scan still says no dominant follicle, or you ovulated and still no line on the test. If you have PCOS and ovulation induction has not worked yet, you are not failing at this — you are in the group your doctor plans for. Here is the honest version: what usually comes next medically, and the daily AGO combo women in the US and Canada use to support everyday cycle, hormonal and egg-cell wellness alongside that plan.
👉 Clomid or Letrozole didn’t work yet? Get a combo mapped to your cycle. Get your FREE personalized combo plan →
Why ovulation induction does not work for everyone with PCOS
Both medications are first-line for a reason, and both have known limits:
- Clomid resistance is common in PCOS. A meaningful share of women do not ovulate on standard doses — which is why many clinics now start with Letrozole instead.
- Ovulating is not the same as conceiving. Some cycles produce a follicle and still no pregnancy; that points the conversation toward timing, lining, tubes or the male side rather than the drug.
- PCOS is not one condition. Insulin-resistant, lean, thyroid-affected and high-prolactin pictures behave differently — see PCOS with insulin resistance, lean PCOS and high prolactin.
- The male side is half the equation and is often still untested at this stage.
Background: PCOS and fertility explained and the anovulation guide.
The honest part — what a supplement cannot do
We will not blur this line. No dietary supplement induces ovulation, replaces Clomid or Letrozole, makes a medicated cycle work, treats or cures PCOS, or corrects a hormone level. Ovulation induction is a prescription decision your doctor owns, and dose changes, trigger shots, IUI and IVF are all their call — not something a bottle changes.
What AGO products are: dietary supplements designed to support everyday cycle, hormonal and egg-cell wellness — the daily-nutrition part of the routine that you control, running alongside your clinic’s plan and never in place of it. Because you are on prescription medication, clear any supplement with your doctor first. No outcome is guaranteed, including pregnancy.
What to ask your doctor at the next appointment
This is the appointment where the plan usually changes. Bring questions:
- “Have we switched to Letrozole, or changed the dose?” Many women who do not respond to one respond to the other.
- “Was I monitored with ultrasound?” Unmonitored cycles can miss whether a follicle formed at all.
- “Should we add metformin, a trigger shot, or move to injectables?”
- “Have my tubes been checked, and has he had a semen analysis?” After several failed cycles, both are standard — see the IVF/IUI prep kit.
- “At what point do we talk about IUI or IVF?” Having the threshold in writing takes a lot of guessing out of the next six months.
- “Are these supplements fine alongside my medication?” Ask this every time your prescription changes.
See the full AGO range and combo pricing →
The AGO combo women use alongside ovulation induction
Once your doctor has cleared it, this is the routine most PCOS customers in this situation settle on:
- AGO Mom — the preconception base, designed to support everyday egg-cell wellness and healthy ovulation patterns. See AGO Mom for PCOS.
- AGO Eva — designed to support hormonal balance and cycle comfort, the usual partner to Mom when cycles are long or unpredictable. See Mom vs Eva.
- Eva Herblux — the herbal cycle-support option many women with irregular PCOS cycles add on top. See Eva Herblux for PCOS and Eva vs Eva Herblux.
- AGO Dad for him — if he has not been tested yet, his 90-day window should start now, not after the next failed cycle.
- Timing: plan a full 90 days, taken daily and continued through medicated cycles if your doctor agrees. Egg cells mature over roughly three months.
Also worth reading: inositol and fertility, PCOS with low AMH and ovulation and cycle tracking.
How to start — and your free personalized plan
- Step 1: Book the review appointment and bring your cycle notes — doses, days, scans, any positive OPK.
- Step 2: Get clearance to start a daily supplement alongside your prescription, and tell the clinic exactly what you are taking.
- Step 3: Start the core pair — AGO Mom + AGO Eva — and add Eva Herblux if your cycles are long or irregular.
- Step 4: Start his side at the same time with AGO Dad, same 90-day window.
- Step 5: Send us your PCOS picture and what you have already tried — our care team will suggest a combo that fits, free.
AGO products are dietary supplements designed to support wellness. They do not induce ovulation, do not replace Clomid, Letrozole or any prescribed medication, do not treat or cure PCOS, are not a replacement for medical care, and do not guarantee any outcome. The easiest next step is a free, no-pressure consultation with our care team.