Why are my feeling this way?

i have noticed that my s have gotten a lil smoother and when i squeeze, they feel more squishier then they used to be, and just dont no wats going on, i have had unprotected , but he said that he pulled out in time, but idk, who knows, but yesterday i was suppose to get my period and never did, and i was seriously moody and emotional, cause of the guy i like alot, i was pretty moody to him for no reason at all, and just started to cry for no reason...i dont no wats going on, so please help me out, doctor told me if i dont get my period after a week its due, then i gotta go take a pregnancy test