Sperm not released during intercourse

[nikodead]

Hey guys,

My name is Alex. I'm 22 years old.

I had sex with my girlfriend last week and she enjoyed sex with me. Also, i have done plenty of intercourse before that, we both are able to enjoy a lot but sperm not releases even once during the sex. My penis was strong and hard from start to the end of sex. and yes, I do use protection every time.

However, when I do masturbation I am able to release sperm in just ten minutes but why it is not happening during the intercourse session? could you please advice me on that?

It's making me get scared that I may not be able to have children and it could be so embarrassing these days.

Any help would be much appreciated.

Thanks very much

Alex

P/s: I still can eject 1 year ago, when I had an ex before, after the broke up, I'm getting depressed and masturbate a lot, I feel like the masturbate cause this one cause I think my dick get used to the speed of masturbating than the speed when I do the intercourse and of course, when gripping penis is tighter and than put inside girl. I stop masturbating but this still not work, I don't be panic at sex, actually, i feel good but not reach to climax.