Im on the nuvaring birth control and this month i forgot to take it out i had unprotected sex for a week after the 3 weeks it recommends, pregnant?

Possible: Remove your NuvaRing immediately. Take a pregnancy test. If you are not pregnant, then you can immediately insert a new NuvaRing and consider it to be Day 1 of Week 1. Use a backup birth control method for the next seven days in a row.

Pregnant ?: Probably not, as the Nuvaring has some ability to continue to work even after the manufacturer's stated deadline for using it. If your period is delayed, get a serum test (HCG) about a week after it is due, which is very accurate for pregnancy.