I'm a 16 year old girl. I have tried to have sex 4 times in the past year but each time i have not been able. Its like the lad cant fit it up or something. at first i thought i was too tight but i don't think this is the case. i have had sex twice before about a year and a half ago. I'm not sure what my problem is now but i defiantly have one but don't know what to do about it. does anybody have any idea what i can do or what is wrong with me?! :(