I Got My Period Last Week For The Normal 5-7

I got my period last week for the normal 5-7 days I have it. However my stomach has been hurting for the past couple weeks, I havent but getting sick or nausea just a weird constant pain. However I am not on my birth control right now. My boy doesnt use a condom but he always pulls out. My stomach still kinda hurts and looks big. Do you think im pregnant?
Please answer back.
Thanks!