Please be nice..

Okay so I'll start off saying typically my period is irregular but comes monthly just moved around in the month. So it's been almost a full 2 months since I've had a period. (My boyfriend and I are trying to conceive). So after missing my first period I was excited to think I'm pregnant. I've taken 7 tests all negative. So now almost 2 months since my last period, I noticed on Saturday I had some brown discharge which sometimes happens right before my period. The brown discharge lasted 2 days then stopped. I had sex last night and this morning I had some spotting. I did research and was reading on Pelvic Inflammatory Disease. And it sounds like I might have it. (I have a doctor's appointment coming up) has anyone else dealt with this? Did it cause infertility?

I'm extremely anxious and nervous. My boyfriend is convinced I'm pregnant even though all tests came back negative.

Help me ease my mind a little!