It's my second month of taking the mini pill. Me and my SO has sex with out a condom for the first time but I still felt uncomfortable with him cumming inside me so he pulled out. The pills insuctions say that they are effect after 48 hours of starting then. However I just read an article saying that for the first three mounth of using the mini pill that a back up method should be used because it is not effect enough alone. Now I'm nervous about any pre cum getting me peragnet. Should I take plan b to be safe. Is it safe to take plan b while on the mini pill?