I want to start using combined pills. Since New Year's eve is getting closer and I'm planning of wearing a dress and don't want to have my period during that time, I want to delay it. I'm supposed to get my period on 29.12. And I was thinking to take pills from 22.12. till 02.01. This way my period will be delayed. My question is, when can I have sex after taking first combined pill and can I have sex during the period of 29.12-01.01. if I take pills?