Abdominal pain

Lexi

Hi ladies, so I’m pretty sure I ovulated early this month because I can always feel when I’m ovulating, anyway me and my SO bd the day I think I ovulated and that was 6 days ago and now I’m having really bad cramps. Me and my SO just got back together and he didn’t get checked before we started having sex again. Does it sound like an STI or maybe implantation? Please help. Thank you!