I'm getting married in next month. My fiance has usually menstrual cycle of 35-38 days. I tried to intercourse 3 times but could not insert my penis inside her vagina. Every time i pushed my penis into her vaginal opening, she started crying and felt pain. My erected penis size is about 4.5 inch and not so thick that she felt a lot of pain. I usually do a lot of foreplay to arouse her. But found her vagina dry. There was no natural lubrication inside her vagina. So i tried artificial lubricant. But the result is same. She doesn't want to discuss about sex and even she is not interested in phone sex also. Whenever i wanted to talk to her romantically to arouse her sexually, every time she diverted the topic and started talking about other irrelevant things. That means she is not interested in sex. The only thing she says is that everything will be ok after marriage. Is it true? What should I do now? Is it her any kind of sexual disorder? Please suggest me. Thanks in advance.