Can we even get pregnant ?

sky
My hubby and I have been having sex for 6 months without birth control.. and I'm still not pregnant. I pay attention to my cycle and we have sex.. alot! We want a baby so bad.. I had a baby 3 years ago (by my ex not him)..so I think I'm still fertile.. I'm only 26 years old.. is it him? What else can I try? No money for fancy doc's. Help!