Minds gone blank...😞💔

I'm at my boyfriends this weekend&we've been having unprotected sex (I've been having my pill&he's been pulling out) but after sex last night he pulled out&I felt his cum drip down my vagina&down to my bum. I then started crying&having a panic attack so he calmed me down&kept promising me he pulled out, so I went to clean his mess off me then when I came back he told me he went for a check up (testicular cancer runs in his family)&the doctor told him there's a very slim chance of him getting it but he said that he has a low sperm count, that really upset me but we're gonna see what can be done about it etc. I'm also gonna have the inplanon inplant soon so we're also gonna look up on that. The other problem were having is that when we have sex he can't make me cum, he's quite small down there&we're both quite big people, I've tried lifting my legs up&sitting on a pillow etc but it really hurts&it's uncomfortable, he can cum fine but I can't, we really love each other&our relationship is beyond perfect but things in the bedroom aren't really perfect&with all this other stuff going on (my inplant&his low sperm count etc) it's really getting us down, we're definitely not splitting up cos we love each other too much but I really don't know what to do to make all of this better :(