so i had intercourse last april 5, then i felt breast tenderness until i had my menstruation april 16 until april 22. the soreness of my breast didn't go, then april 26 i had intercourse again, a few days after i saw my left areola/breast darken, (maybe it's because of my boyfriend sucking it too hard), my breasts are still tender. i don't know why. am i pregnant?