I had unprotected sex about a half hour ago, the condom was a spermicide condom, but after he came inside me with the condom "on" we realized to our horror that it had slid down the shaft and the cum was spilling out. I noticed it was on and somewhat inside of me. It's been exactly 10 days since my last period and I am not on birth control. I am about to take plan b right now; is it possible I could get pregnant? Obviously it is but what might my chances be? Advice would be wonderful because I'm as worried as can be. Thanks :)