 [ Symptoms ] plan b and starting birth control so i have been off of my birth control for a month or so now because of health complications i was planning on starting it after my next period as my doctor wished last night the condom broke i am planning on taking plan b very soon i know plan b can make your periods start early is it still okay to start bc with a period that is not exactly normal [ Disease ] hi ok what plan b will do is alter your period date so when your get the bleed from plan b this is now your new period date it will be ok to start then hope this helps you good luck