I am on birth control but I haven't had it in a while because of financial reasons. Now that I have it again, my doctor told me to start it on a Sunday when I start my period. I haven't started the birth control yet because I haven't started my period. What do I do? It is a nice vacation but I am starting to wonder. Please give me any suggestions or tell me what you think is wrong. Any help would be much appreciated. Thank you.