My boyfriend and I had sex around 6pm on the 11th (I am expected to beign ovulation on the 14th) when the condom broke and we did not realize until after he pulled out. I took Plan B within 1.5 hours after the incident. My question is, if this pill works to cause a delay in ovulation, but sperm can last inside the body for up to 5 days, am I protected against pregnancy (as the Plan B pill says it works for up to 2 days)? Should I take another dose today, the day after taking Plan B, just to be sure? (I do not plan on having sex until after my next period comes).