... I am a 19 year old, and I take my birth control pill at 9 pm every night. I took the pill Saturday night at 9pm I had unprotected sex later that night and on Sunday morning and then forgot to take my pill Sunday night. But that pill was the start of my placebo week and I remembered to take it 9 hours later and I took it. Should I be worried about getting pregnant or having to take plan b. Or should I wait it out?