Can’t get Pregnant, but maybe I am?

I’m 36, never been pregnant. Had my period since I was 10. Have endometriosis and last year had a D&C after having my period for three months! This year i’ve missed two periods. My partner and I want to have a baby so badly. But it’s just not happening, not only does sex feel like a chore, we can’t get pregnant. Right now, I’m 14 days late, i did two pregnancy tests at home and they are both negative. I am seriously bloated and getting the weirdest symptom of thinking i’ve peed myself. Sometimes it’s like I can’t empty my bladder fully or something. I don’t know how to describe it. I just wanted to see if anyone had experienced anything like this before. I’m freaking out, and it’s hard to explain to my husband. He wants to be supportive but its hard when you don’t go through the same things.