What do you ladies think?

No negative comments please.

Ok so i have been on the same birth control for 3 years. This birthcontrol has made it to where i never really have a period nor do i have period symptoms. I take birthcontrol for metical reasons and to help control my hormones.

But on the 17th i had unprotected sex and my bf didnt pull out (basicly came inside)

Its the 22nd and for the past 4 days ive been extreamly moody, mostly i get irritated or cry alot and it frustiates me bc i dont understand why, and my boobs hurt off and on and my lower back and lower stomache hurts but not like cramping. I had a gut feeling for 2 days basicly say " yep good job. Watch your pregnant " but my boyfriend keeps saying its gonna be ok you know why bc i dont feel like you are pregnant". Me and my bf are very close and are able.to litterally talk about anything, one of the things we talked about is what if i am well 3 weeks prior to thing me made me a promise ring in jewlery class (we are both seniors in high school) and hes told me if i ever do get pregnant hes not going to leave bc we both grow up know what its like to not have our dads sooo yah. Plus me and him have very good paying jobs..And i know i am not stressed out im just worryed abit and would like some advice. Any advice/thoughts/anything will be apriciated.