It's weird because I'm very on time and precise with my shots every 3 months, haven't been late not even once or by a day. So im not sure if the antibiotics couldve affected it or if im overthinking it all. I've just never experienced this at all in my year of being on it.
I’d get a blood hcg test. My worry is left sided pain, need to rule out ectopic
No contraceptive is 100% if concerned, pregnancy test