I was on Loestrin 24 for 3 months, and decided to switch to YAZ this month. I am just starting my second week of the new birth control, and I had unprotected sex with my boyfriend last night. Is it possible to get pregnant because it is the first month of a new birth control?
After a week, it's often long enough to be protected from pregnancy [depending on when you started], though most doctors advise you to wait a month to be on the safe side. Since you've been on birth control for awhile I'd say you're fine. If you miss your period, take a pregnancy test. But try not to stress about it, because stress only messes up your cycle.
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