I'm on Junel Fe BC pill, and there were complications getting it refilled yesterday. I usually take my pill at 9 pm, however I wasn't able to get it yesterday so as soon as I can get it today I will take it. The problem is me and my boyfriend had unprotected sex earlier in the day before i knew I wasn't going to be able to refill my pill last night. Should I take plan B? It's the first week of a new pack and I know that's important.