Hi. It is not impossible for you to get pregnant even at that age, since you're still having regular periods. The easiest way to answer your question is to go to a drugstore, get a pregnancy test kit, and test your urine. If the test turns out positive, then you should go to the doctor for a prenatal check up. Since you're just one week delayed, it may be too early in your pregnancy for the urine test kit to turn up positive. So if you do get a negative result, I suggest that you re-test your urine after a week to make sure that you're not really pregnant. Good luck.
I am 51 with regular periods,just got married,last may..had my period sept 6 7ill 13...I am due for the next period but still haven't had it..do you think I am pregnantI i am feeling symptoms of pregnancy