Starting third round- what can I be doing wrong?

Hey ladies,

First round 50 mg didn’t make me

ovulate, but did give me a false lh surge- ended up being a usual long 38 day cycle. Second round it worked at 100 mg, 21 progesterone test was 45! Had the pains and temp increase all on CD14- but period arrived right on day 28- we definitely could not of missed it :( we baby danced CD 8, 11, 12, 13, 14, 15. We conceived in May on our wedding night and suffered through a missed miscarriage. So we had hope it’s possible, but now I don’t understand how it didn’t work this time. Any answers as to why you think it finally worked when it did for you on clomid? Thank you 🙏🏼