Im a 33 year old Asian male married.Since last year we are trying get pregnant.However during intercourse at times I lose erection.In addition when it does get stiff Im unable to penetrate the vagina.its really frustrating. It takes me couple of times to masturbate and get it up however Im still unable to penetrate and ejaculating at the mouth of the vagina. Couple of times,we experienced a little penetration but it was very minimal.My wife is 30 and she had a recent check with the gyneacologist.The doctor said that she was able to insert her finger into the vagina and concluded there was no concern.I recently had my blood checked.GLUCOSE RANDOM,PLASMA 87.0 CHOLESTEROL H 257. I exercise regulary consume alcohol moderately once in a week do not smoke.Please help.We are so traumatized by this situation.Appreciate your diagnosis and advice at the earliest. My Stats. height 5 6 weight 69 kgs.