Is It Ovarian Cyst Or Low Sperm Count

Hello to anyone who is reading this...I’ve been with my boyfriend for 6 years now and we have been trying to have a child of our own but no luck yet....Each time we try I get no symptoms of pregnancy at all, like most women would’ve like miss periods, camping pain or miscarriages at all. I would still come on my cycle as if we didn’t have sex at all. I do have ovarian cyst but not the ones like endometriosis or PCOS.....It’s getting frustrating to the point I even asked him have he even tried once before with his ex-girlfriend and he said “yes” he have but with her she was having a hard time trying to get pregnant herself.....Now it having me questions could it be him and he just doesn’t know it?....Or is there something he’s not telling me?