Serious TTC question. Possible TMI?

Sorry if this is in the wrong place, I am not sure where I should post this.

Lately my body has felt weird. My boobs ache a little and I actually have sensation in my nipples right now. I am overly sensitive down there (ex screwed me up down there by biting and I rarely have feeling in my clit.) It also seems like my DH can't go all the way in because it feels as though he is going too deep. I have been very tired and have to pee a lot. Two weeks ago AF showed up but only lasted 4 days instead of 5 and went like this. Spotting, light, medium-ish, then spotting again. And then two days after my DH had this odd pink stuff on him afterwards. I know we are clean and have no std/sti's so what could all of this mean? I am a little paranoid because I only seem to have miscarriages. Please help.