Sorry I wasn't sure where to post this! I've been taking Yasmin for about 6 months and haven't had a period during any of the 7 day breaks. I've taken tests and I'm not pregnant. Before this I was on cerelle/ cilest for about 7 years and didn't have periods on that either, although that's normal for that type of pill. I don't want to bother doctors at the moment, but I don't know how concerned I should be? I'm quite happy to not have periods!