Ok so I'm been seeing this guy for about a year now and I only have sex with him. I dnt use a condom but have been on orsythia for about 8 months and 2 days. Took morning after pill last Sunday when I was starting the green pill for my period. Well I didn't start n was worried that I might be pregnant but took a pregnancy test this Sunday which would have made it a week of not being on period n came out negative. So should I worry. Called Doctor n they said I should t but didn't know if it was normal not to have a period n be in birth control? I need someone's help...