I'm freaking out! Me and my boyfriend use the pull out method when we have sex and now my period is 15 days late! I got a UTI a week after we had sex, could this cause your period to be late? I took two pregnancy tests 10 days after my missed period and they both came out negative! I'm not stressed and haven't changed my diet or anything! I'm gna be 29 this month and I've NEVER had my period be this late before! What could be causing this? Any thoughts or ideas? I would really appreciate any input! Thanks dolls!