I am on Day 5 of my new menstral cycle. I took the first pill of a Yasmin 28 day birth control package on Day 4. I used to take these pills about 5 months ago but stopped because I did not need birth control anymore. After having the Yasmin headache all day today I have decided that it is not worth the daily headache I am going to go through, I will rely on condoms and if necessary, plan B. I am not going to take any more pills, will there be any side effects of taking that one pill? Longer/shorter cycle, bleeding, egg release, any sort of side effect?