u/Holiday-Region-3157

I was on opill for like a couple of weeks in March, from about the start of March to the near end, had sex while on opill it wasn't very long I'd say it was two times with each time lasting like 30 minutes, and after the duration of being on it I haven't had sex and I quit it. But I feel scared that I could be pregnant... I have taken tests, both of which were not positive but I'm worried I could have taken those tests wrong.The biggest side effect I have is the lack of a period, and now my belly is starting to look weird with more fat around my ribs and midsection. I dont have nausea or what I assume to be pregnancy symptoms, I just feel confused and scared. I have already missed April's period and I'm concerned I could miss mays... Is there anything that could help bring it back so I know I'm not pregnant??

For reference I am a 21 year old who has previously had irregular cycles but also been on and off opill with usually no problems, and from the period of about March (I would say the 5th to about March 29th this year I took opill while I was visiting my partner. We did have intercourse twice but and they pulled out both times aside from that we didn't really do anything. But after the 29th I quit the pill. And for reference the last period I had started on March 1st, so I'm starting to get worried and also I'm having some bloating(well, I hope it's bloating) , despite taking multiple rapid results tests. One this past weekend and one on April 20th, I'm still scared because I think the tests could be wrong, but I'm not sure. Could this be post pill amenorrhea or could it be pregnancy?