I recently switched birth control pills. I was first on kariva and i am a sunday starter. I started Kariva on sunday, but my doctor changed my birth control to yaz on monday. That monday i started on yaz and since i have not missed a pill, and i have taken it at the same time exactly. I know im not supposed to have unprotected sex for 7 days, but on the sixth day i did. After that i was worried so i took the plan b pill. Last night we slipped and it happened again. Could there be a possibility of me being pregnant, even though i've taken my pill correctly? Im afraid im at risk since i switched birth control, also bc i took the plan b. Im afraid my hormones might be all crazy. Id appreciate feed back. Thank u in advance.