Am I going insane?

Crystal
No rude or disrespectful comments please. 
Alright so two months ago during supposed ovulation I had sex. My period came but the first day was spotting the second heavy and for a couple days after that it was spotting again. This last month I had sex again during ovulation and I noticed some cramping during the last two months of ovulation. Lately I've been... Not myself. Normally my boobs hurt every time I'm about to start but now it's just my nipples (which have been constantly hard for like the past 2 1/2 days. I'm having slight problems using the restroom. Food has been iffy for me but I haven't thrown anything up unless I'm coughing so hard from smoking. (Before you get all high and mighty I know smoking makes it harder to conceive. If I get pregnant I will quit) sometimes I feel like I'm gonna throw up but I don't. My lower back has been hurting constantly but I also have pcos so it could just be that acting up right? Idk but I feel different. I just don't want to go get a test and it be negative again :/