2 weeks ago me and my boyfriend had unprotected sex. I was on birth control but I miss several pills so I went ahead and took Plan B. I never started a period so when I started my new pack of birth control pills I got my period but still kept taking the pill. I was also taking amoxicillin on the first week of the birth control pack. I'm now on the second week of my birth control pills and I also finish my period few days ago. We had sex and I use VCF film just in case since I was taking antibiotics. Is that enough or should I go ahead and take Plan B ahead?