Question

Ok I had un protected sex July 6 I toke a plan b July 7th I had sex again Un protected again July 15th do you think there a change I can be pregnant he said he pulled out and my period is supposed to come in the next couple of days but the plan b I toke is supposed to mess it up so what should I do , n when is the earliest I can take a pregnancy test ? I am actually really nervous idk if it’s my stomach feeling werid because I’m scared or what . Also my boobs are kinda sore but that also happens when I’m bou to get my period