Sex feels like a chore so now what? ??

Amy
Ok so I've been ttc for almost two yrs now an all last month and so far this month my fiance will only have sex with me once a week an most of the time we have sex for 1/2/3 hrs an he can't cum he says it's me coz I ask him if he's going to cum an it also feels like a chore an I'm just using him for his sperm well it was his idea to start all this ttc stuff