Have any of you guys had problems with premature ejaculation?

I had, but only when i was too brittle from the hard hangovers or exhausted and sleepy after repetitive hard day's work. The cause is mostly psychological. 

Just jerk off once or twice before the session and the problem will be solved.

I've done little research after i saw your post and i've found interesting info. It says that 9 out of 10 men ejaculate within 1 minute after vaginal penetration, is it true?

I highly doubt it, don't believe everything you see on the internet.

I don't know what premature ejaculation is supposed to be. If i didn't nut in a while i'll cum quickly, if i just have nut before the session and my balls are pretty empty i'll last longer, so what is an actuall problem with a premature ejaculation? 

Well i know some cases where even having a wank didn't help. So maybe try with thicker rubbers, and simply take a pause when you notice you're close to orgasm.

When i'm close to orgasm but want to delay the ejaculation i always distract myself with imagining something utterly unsexual like Morgan Freeman mantling a boar or something like that.

Thanks guys for the suggestions and sharing your experiences. It's a big relief knowing i'm not the only one with this kind of issue.

It's the reason why I unexpectedly had CIM with an escort who i was meeting for the first time, and to make matters worse, she explicitly said prior to the meeting no CIM was allowed. lol 

She was furious, i had to treat her with an extra 50 just to calm her down.