i started my period on a fri but waited for my period to stop then took the birth control on that sunday.
You are supposed to take it the first Sunday of your period even if it started on a Sunday. If I were you, I would use a back up method until I was absolutely sure I wasn't pregnant and have used all 21 active pills. I would also let the doctor know that I accidently took it differently than I was advised to. Do continue taking it unless your doctor tells you otherwise.
- Ortho Tri-Cyclen Information for Consumers
- Ortho Tri-Cyclen Information for Healthcare Professionals (includes dosage details)
- Side Effects of Ortho Tri-Cyclen (detailed)
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