Edit: angels heard my prayers somehow. I got my mf period!

Ok soooo here’s the DL. Basically I I’m 17 and was on birth control for my ugly ass acne last year and I stopped taking it right around New Years to which I thought I was a good idea to have unprotected sex on NYE. I had a small period after that (don’t know exactly how far away from nye it was but yeah it was like a period that was triggered by the Birth control) and now I still haven’t had a period since that small one. I’ve always had an irregular period but this is fucked up like I could be 7 months pregnant and yeah I’m scared. I did a preg test about 2-3 periods late and it was negative but it was just the cheapest one there so It could’ve been wrong D: only reason I’m worrying is coz my Aunty was on birth control and got preggos and didn’t know for 7 months too so Fuuuuck. Any advice for a struggling sister ?