I have pcos history. I only have periods when i take meprate 1bdx5days else my natural periods are not happening from approx 7 or 8 months. I had ipill once 5 months back in February and also checked upt: negative. Then i had ipill again in may end and also checked upt in june starting: negative and then again checked upt in july ending (5 days back) : negative. It's August starting today and I'm feeling nausea since july ending since 1 week. What could be the reason? And why i am not having periods without meprate or ipill from so long? And this nausea feeling now after 2 months of unprotected coitus and checked upt : negative.