I am Karthik and I got married very recently, I have been experiencing this unusual issue. Before marriage I never had a chance to enjoy sex and after marriage I have been having this issue where I am not able to ejaculate when I am having sex with my wife. Firstly, I was not able to penetrate but gradually I was able to but with a lot of difficulty. I got married in Dec and I can count how many times I could penetrate. While penetrating I have a small prick kind of pain in my penis head, but I can say that I am not able enjoy sex because I have more pleasure while masturbation but I dont have that pleasure while having sex. My foreskin hasn t come back yet. I haven t had any serious accident but yes one small incident happened when I was kid, twice my pant zipper stuck on my penis while wearing the pant and in the process of removing the zipper my penis was hurt a bit and the injury wasn t serious, but after that incident while urinating, I have maintain an angle. Also, I feel that I don t get full erection.