Spilling my gut

So I am 22 years old going on 23 in April 2018. My boyfriend of almost two years is about to turn 29 next month. He has one son who turns 10 April 2018. (Day before mine). When my boyfriend was around 16 he got kicked in the balls hard which the doctors told him that it made him 96% sterile. Fast forward a few years and he had his son (miracle baby?) I was 16-17 when I first realized I do want kids in the future. Back on January 1st 2016 I met my bf and we immediately started trying. Just something about him made me want a child with him. So we have been TTC for almost two years. No luck. Only time I thought I was pregnant was when I went to the bathroom and ended up not being able to move I was hurting so bad. Figured maybe it was a miscarriage but didn’t go to doctor because I had took a test and it was negative. So I thought to myself and came up with a just flat out painful period. We have been trying and trying with no luck. I want to go get myself checked to make sure nothing is wrong but then again I don’t because when I asked my bf if he would go get checked to see if anything changed over the last almost 10 years he told me no. To be honest he doesn’t want to go because he doesn’t want to hear the doctors say that he is completely sterile now. Which I understand completely. I am honestly so tired of TTC. This month I have had a couple different symptoms that both suggest that I should either be starting soon or implantation. I don’t want to test because every time I do I start the next day. I am not due for 5 more days for AF. My bf knew his ex was pregnant because he actually had all the pregnancy symptoms. A week or two ago he told me as soon as he woke up to take a test but I said no because I was just about to start ovulation. We did have sex during my fertile window. I mean maybe it was a sign maybe not. But as of right now I just want to give up. I know others have been trying for years so maybe their is a chance for another miracle baby. It’s just a lot on my mind at once. I am going to get tested here soon maybe in about a month if their is a free clinic nearby since I don’t have insurance till January. We are also moving in January from Texas to Pennsylvania since his son lives up there. So once I get checked and if things are normal on my side I’m going to ask him then to please go get checked as well. I am just hoping someday I will have my chance at being a mother.