U.S. doctors online nowAsk doctors free
Portland, OR
A 17-year-old female asked:

Perfect user of ortho tri cyclen (ethinyl estradiol and norgestimate) lo missed period this month, didn't have sex this month. how does bc make u miss a period?

1 doctor answer1 doctor weighed in
Dr. Ernest Fischer
Internal Medicine and Pediatrics 12 years experience
Uterine lining: A period is when the uterine lining that built up for possible egg implantation is lost when a pregnancy does not occur. Some birth control pills not allow the lining to build, some force it to be lost.
Created for people with ongoing healthcare needs but benefits everyone.

Related questions

A 18-year-old female asked:
Taking ortho tri cyclen (ethinyl estradiol and norgestimate) lo BC. on the last few pills of my second month and haven't gotten my period. Is this normal? No sex, only hump w/ underwear
Dr. David Lipkin
Internal Medicine 53 years experience
Very common : It's not unusual to have very slight bleeding or no period at all when on the the BCP
Created for people with ongoing healthcare needs but benefits everyone.
A 19-year-old female asked:
Unprotected sex 2 weeks after discontinued use of ciprofloxacin. Had a period in between the 2 weeks. Took ortho tri cyclen (ethinyl estradiol and norgestimate) lo whole time. Protected?
Dr. Jane Van Dis
Obstetrics and Gynecology 19 years experience
Yes, likely: Yes, you are likely protected. The effects of antibiotics on birth control efficacy is very minimal. Sometimes women use a back up method like a con... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 47-year-old member asked:
I've been on ortho tri cyclen (ethinyl estradiol and norgestimate) lo for 3mo now and this month i still haven't gotten my period. Help?
Dr. Nancy Durso
Fertility Medicine 39 years experience
Normal: With the low doses of estrogen there may not be as much lining build up to have any period at all. This is ok. If you want period would have to chan... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 28-year-old female asked:
Can i skip or delay my period by one week on ortho tri cyclen (ethinyl estradiol and norgestimate) lo? If so, how would I do that?
Dr. Lisa Vansaghi
Internal Medicine 22 years experience
Yes: Just continue taking the pills for an additional week before switching to the placebo pills (usually white).
Created for people with ongoing healthcare needs but benefits everyone.
A 33-year-old female asked:
How can i stop my period since it started about 2 days ago im currently on ortho tri cyclen (ethinyl estradiol and norgestimate) lo?
Dr. Collin Smikle
Obstetrics & Gynecology 37 years experience
Birth Control Pill: Ortho Tri-Cyclen is one of the low dose pills and there may not be enough hormone to suppress your ovulation or support the endometrial lining. Missi... Read More
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Sep 26, 2014

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.