Worried

Jessica • Mommy of 2 ♥️
So while we were TTC I had missed AF for 3 months. We believed to be pregnant but all test were BFN and blood work was also negative so my GYNECOLOGIST told me I should get on birth control to regulate my period 😕(huge set back) so when I was on the 2nd week of the pill I got my period. I have never had a period last longer than 4-5 days and ever since I started the pills I am on day 12th. Is this normal or has it happened to anyone before?I'm freaking out. I got AF on November 2nd and still have it.