I had unprotected sex on Saturday on my birth control pill free week and I lost a lot of blood during that night, like how much is enough blood to be lost during losing your virginity? It felt like a heavy flow but I get my period always on a Tuesday. 35 hours later I took the morning after pill and Tuesday and Wednesday midnight I go to the bathroom and there's red blood like I'm on my period but then nothing after that. And lately ever since I started my other pack of the month for birth control I am having brown vaginal discharge. Could I possibly be pregnant? What's the reason for this?