I inserted the NuvaRing on my 4th day of my period cycle. I know for it to be fully effective, I have to keep it in for a week. On the sixth day since I inserted the NuvaRing, I had unprotected sex. I didn't let my partner finish inside me, though, he did the pullout method. Would I still have been safe from precum if I was only using the ring for that long? I know it's my fault for not even following simple directions when using this! (I've been on the ring two weeks today).
Insert NuvaRing on the first day of your cycle, (i.e., the first day of menstrual bleeding). NuvaRing will work immediately, it is not necessary to use an additional contraceptive method. You may also start on Day 2 to 5 of your cycle, but in this case make sure you use an extra method of birth control (barrier method), such as male condoms or spermicide for the first seven days of NuvaRing use in the first cycle.