I wanna know if its possible that im pregnant?

i wanna know if its possible that im pregnant. ive done it with my bf a week in the past my period. i still have my period by that month however the subsequent month ive never had my extent.. and now its the 6th week since ive ultimate had my monthly term. ive had 3 test but negative. but im worried inflict ive never had any irregularities when it comes to my monthly interval. hope someone can help and answer me near my questions and worries...thankfulness! ill appreciate it greatly! It could be a lot of things. But if you've taken three test that say you're not pregnant, you're probably not pregnant. Are you more stressed than usual? Have you moved not long or changed jobs? Are you stressed over the pregnancy testing results? Stress can really affect a woman's cycle. Make an appointment with your doctor and give an account him/her what's been going on. The doctor will know what to do.
There are a great deal of reasons that you could hold missed a period. If it become so long from the last time you have a period, you should check near your doctor.