Bleeding after sex...

So my boobs have been hurting when I take my bra off if I move they hurt or if I push on them, I have mood swings like I'm bipolar I snap on anyone and anything and I'm so irritable, my last AF was march 21st and it's not suppose to start for another 11 days but glow is always a week early or a week late. After sex I layed there for a few mins then got up to go to the bathroom and wiped there was light pink blood, woke up next morning and nothing. Me and my so have been trying for a year this month...I don't want another disappointment...