Extremely sharp bbt drop?



I was wondering if anyone could help me figure this drop out.

I don’t have regular periods so my doc put me on provera for a period, and then I started clomid. I did OPK testing, got three days of positives, and have been doing the BD almost every night for ten days now. I thought I may have ovulated on CD 16-17, but this morning my temp dropped an entire degree. Is this bad? :frowning: Why could it have done this?

I test vaginally since I sometimes sleep with my mouth open, and I test every morning at the same time.

Here’s my chart: 37082e Ovulation charts on FertilityFriend.com