Suggest Remedy For Non Retractable Fore Skin

Hello! I have a problem .. My foreskin can not be withdrawn. My girlfriend and I have had much sex here the last couple days. And it looks like my foreskin has got some cracks? It is not fixed on the head, but it seems like your foreskin can not extend? Do you know what the problem is? I've used google translate. For my English is not so good. And this is the only "Chat " page I can find.