Hi My Question Is On Regards A Birth Control ..

Hi my question is on regards a birth control .. NuvaRing ... My question is at the beggining of the month i had my regular period after 5 days I had unportected sex with my boyfriend and I took Plan B ... my period came again in the same month around 4 days after I took the pill ... and on the 3rd day of having my period i put in my NuvaRing and had sex again ... my question is ... will I get pregnant??? or should I take another Plan B and take out the NuvaRing out?