last month i had my period was nov4.2007 and ended nov9.2007..okay me and my bf had unprotected sex dec8.2007 i was suppose to get my period around the beginning of december but i never did when i had sex wit my bf i took a drug called "xo" i waited for my period to come but never did we had unprotected sex again on dec 24.2007..he pulled out on time the times that we had sex..i have a regular period cycle..i took a pregnancy test on december and on jan.4.2008 and turn out negative i still hadnt gotten my period and its 1/10/08..i dont get any sings either i dont feel tired i urine often but not alot i dont feel like throwing up..etc..do you think i may be pregnant???:confused:

What I think you need to do is go to an OB/GYN to make sure? It could be a problem with the "xo" in your system. It could have stopped you from ovulating. Any time you notice a difference in your cycle, you should try to find out as soon as possible what the "problem" is. Unlike for a man, this is an internal problem and needs to be taken care of to make sure that you are okay health wise. It may appear scary, but what is scarier is letting this go on without finding out what is really wrong. Your mind will always wonder what the problem is and will probably make you come up with ideas much worser than the problem really is. The only way to give yourself a true peace of mind is knowing for sure what is happening to you and your body.

as for getting pregnate there is a huge possiblity you will with the method you and your bf are on now (pulling out) a mans sperm can be even in his secretions before and after sex so I would suggest condomes and if you are very close and open with one another birth control pills.
best of luck