I have been on Yasmin for 2 years now, I've never ever had any problems with it. I've always started when I was supposed to, I haven't skipped any pills, I've taken them like I should. Well I've started my period 8 days before I should have started. Its a weird period though. I had very light spotting on day one and two, only noticable when going to bathroom, and then it got a bit heavier day 3, but not at all like my normal period heavy, at all. On day 4 and on day 5 very light, and yesterday nothing whats so ever, and this morning a very light brown discharge. My normal periods only last 3 to 4 days really heavy, and now this is happening. I've called my doctor and all the nurse said is just monitor it. I was on antibiotic for 2 days and took a double dose of it each day (4 pills total) about 3 weeks ago, could that have caused all this? I also took cough medicine, and cold medicine about 3 weeks ago as well. I should start my period this coming Tuesday since I'm on my sugar pills...could I possibly be pregnant? Thanks for your opinions.