When to inseminate?

Anon because nobody knows we are trying.

We are doing an at home insemination so we can’t just baby dance multiple times. I plan on tracking my ovulation using OPKs once my fertile window starts but it says I ovulate on 12/13 but my peak is estimated 12/12? So do we do it Thursday night or Friday night? I know the chance decreases a lot after ovulation so we want to make sure to get it right. After I get my peak on my opk do I inseminare that night or the next day?