I had sex on the 9th and my period came around 5 in the morning. and I’ve been on for 5 1/2 days. I took my birth control pill on 11th were my period was still there I was on for 5 1/2 days cause it started to become old blood. And I was kinda cramping still and I’ve been feeling nauseous and dizzy and dehydrated and idk if my mind playing tricks on me or not but I think it might just be the birth control and it is still happing but I don’t think I’m pregnant I think it might just be the birth control and IDK what to do now cause all i really but wanting to do is sleep and eat