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3 months missed period on birth control

Ok so my girlfriend has been on the pill for almost 2 years and doesn't ever miss it according to her but she hasn't had her period since before we were dating. about a month after we started dating she stated she missed her period. a few weeks later she took a urine test and it was negative. its been nearly 4 months now since she's had a period and she's worried she's either pregnant, or her birth control has ruined her chances becoming pregnant in the future when she's ready. Is there a good chance of either one or is it possible that the birth control she is taking just keeps her from having a period? Anyone experienced this or know about the possibilities we would love to know. Also she doesn't go to see her gynecologist for another month. should she go earlier or is this a regular thing.
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replied December 29th, 2013
Welcome to ehealthforum,
Many women experience missed periods while being on hormonal contraceptive pills. If she has missed her period for more than 2 months, and if pregnancy chances are suspected, blood/serum HCG test should be done to confirm/rule out pregnancy. If she is not pregnant, the possibilities could include secondary amenorrhea due to obesity or increase in body fat percentage, brain or pituitary tumors, PCOS, ovarian suppression (post contraceptive ovarian suppression/failure), premature ovarian failure, thyroid dysfunction, use of certain medications, changes in stress levels or lifestyle, hormonal derangements, etc. She should consider visiting her doctor/gynecologist for further evaluation (physical examination, blood and hormonal work-up, ultrasound scan) to look for the underlying cause. Treatment as appropriate (based on examination findings and investigations results) would be started to help her get periods and regulate her periods. She should be in regular monitoring and follow-up with her treating doctor/gynecologist and report any new/abnormal symptoms immediately.
Take care.

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