Should i go see a doctor? i've missed two periods and i'm not pregnant. my cycle is usually regular. i'm not sure what to do and i'm 100% positive that i'm not pregnant. i haven't had my yearly exam yet either. last one was feb of last year, could that ha

As : As this sounds like the first time ever you have skipped two months - it is not too worrying, and could either be a one-off, or the start of having more irregular periods. Have you been under extra stress such as final exams or moving house, increased your exercise level (like training for a half-marathon or marathon), or recently lost or gained significant amounts of weight? Many conditions, other than pregnancy, can make your periods irregular - commonly polycystic ovarian sydrome (pcos), also underactive or overactive thyroid, excess prolactin hormone, aging of the ovary (diminished ovarian reserve), or low hormone levels (hypogonadism) from heavy exercise, eating disorders, weight loss, or stress. Some medications can affect your cycles as well. If you have a genetic tendency to have pcos and you gain weight it can make your cycles irregular. The only way to be 100% sure that you are not pregnant is if you have not been sexually active with a male partner since your last period. Otherwise, even highly effective birth control methods have a small failure rate, with the Mirena (levonorgestrel) iud having the lowest pregnancy rate (along with surgical tubal ligation), and a blood pregnancy test should be done to be 100% sure that you are not pregnant including a very early pregnancy or an ectopic (tubal) pregnancy. Urine pregnancy tests are not quite as sensitive as a blood test. I recommend seeing a ob/gyn md to find out what's going on. Your cycle being late is not related to not having your annual exam, which includes a pap smear to screen for cervical pre-cancer, but you could schedule this too. If you are sexually active, once a year testing for chlamydia is also recommended for women under 26, as part of your annual check-up, as this infection is common and often goes unnoticed. If you continue having irregular cycles, i recommend seeing a reproductive endocrinologist for testing, and for treatment (if needed), even if you are not trying to conceive. Our website is below. Best wishes.