I have PCOS and never had regular periods. I did 3 rounds of Clomid, the first on 50 mg and was regularly blood tested so they could see what my hormones where doing. I did not ovulate the first or second time but did the 3rd time when I went up to 100 mg but did not conceive. While Clomid will make you ovulate sometimes it does not mean you conceive straight up. I had very long cycles on Clomid and was told IVF would be needed. We went away on a holiday and I conceived straight up, turns out Clomid gave my body a kick start so to speak into ovulating naturally.

While researching the drug I found out that only about 65 tp 70% of women who take it will conceive on it.