When the time comes wherein I should take the placebo pills, can i only take 3 or 4 of them?

Hello. I'm Nini and I am 16 years old. I have a boyfriend and we are still going strong for 8 months. I am taking the pill for 24 days. I have some questions about taking the pill. Sa last Friday, (August 19,2016) I was supposed to take my placebo pills but I didn't because my boyfriend and I decide...