Can Smoking Marijuana Effect The Morning After Pill? My Bf

Can smoking marijuana effect the morning after pill? My bf and I had sex and I wasn't on birth control and he forgot to use a condom and forgot to pull out. This is the first time its ever happened and the first time I've ever taken the morning after pill. But about 30 minutes after I took it, a friend and I smoked marijuana.. Can that have any effect on the morning after pill?