My name is Alex, Age 27
I was thinking I didn't had any erection problem, but I was having sex with my new girl friend today after 2 year or so (I had a nice sex 2 year back with out any issue) but I was having a erection problem today my penis was not at all getting erected for having intercourse.

I Used to watch lot of porn movies and masturbate along with the movie or just after that... that time there is no problem for erecting..
Is that made me like this... what would be my problem.. am really worried as I am getting married in another couple of months time...

Please advice me...

It something happened just once, that can just be it, it happens, all men lose an erection from time to time. Or if this was the first time with this girl after a while of no sex, it could be nerves.

If after getting hard, and starting sex, it gets soft, yes too much masturbation can cause that. You get too used to how your hand does, and that much pressure, which is not the same.

Normally if you stop masterbating for a month or so, you should get back to more normal if that is the issue