When did I ovulate ?

Shell

Please help. I’m not sure I completely understand the process. Do you ovulate after the peak or after the first high test. CD 16 says low but it was pretty dark. That was the day I BD. I wasn’t able to any day after due to my husband being gone for work. My <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> said I ovulated Monday and my Premom said Tuesday. What’s the possibility of getting pregnant if I bd on Sunday. I had cramps Monday and Tuesday. And today sore boobs.

Thanks for the help!