Could I be pregnant?

Hi everyone! So I had sex with my boyfriend and he wore a condom. He pulled out before he was going to ejaculate and right as he did, the condom broke. His sperm landed on my clitoris and on my thighs around my vagina. None went into my vaginal opening. My boyfriend immediately got toilet paper and wiped the cum upward so it wouldn't go into my vagina. A bit later I washed with a wet washcloth. After getting dressed, we bought Plan B so it was taken about 1-2 hours after. This all occurred the day after ovulation so with all of this being said, what are my chances of becoming pregnant? I'm freaking out and I don't know what to do. Any help would be appreciated. Thanks!