Bored need help

Adrianna • 25 engaged so happy! Waiting for kids and loving life
I can't take birth control because I overweight (trying to lose it) 
I really want to have a good ending to sex but my partner carnt give me that because he carnt finish inside me :/ he cannot use condoms due to health issue. 
Just want good sex once where I can orgaism and finish.
I've had one twice before but never with him what should I do to tell him how I feel