Sex with foreskin

Hi , i have been married for 4 months now and me and my hubby have not yet had sex. He has a tight foreskin and he does not seem to be able to insert his thing into me. We have tried a number of times but failed. By the time he has tried inserting he says he has gone soft. I know we need a doc but he does not seem to take it seriously. Any suggestions how and wat to do to acheive it?