So me and my girlfriend messed around on January 29, but we didn't have sex. She did give me a ha****b, but my *** didn't go anywhere near her vagina. She has irregular cycles I think, and she didn't keep track until only recently, but if we based it off her two previous periods, December 10 and January 8, it was 29 days apart. If we're going to follow that, she should've had her period yesterday, but it still hasn't arrived yet and she is extremely stressed out.