I have some cramping on one side and I’m wondering if I possibly ovulated?

I had sex earlier in the day so I am not sure if it’s from the sex or because I’ve ovulated. My app says not til next Wednesday however my cycles are irregular.

Any tips for what to look for without opk tests? I’m 14 days after the first day of my last cycle. If I ovulated when do I test for pregnancy?

Thanks.