OPK?! Help?!

Hey girls.

I’ve posted a bunch because it’s my first month TTC. I had a short 3 day period, 4 days after i got a peak on a opk, and than tonight also think i got a peak?! I’m wondering if today was my TRUE peak since i know right after your period you can get an LH surge. I don’t tempt due to my crazy work schedule. Just trying to figure out what day i could’ve ovulated to keep track?!