Im 20 days late for my period! negative pregnancy test.

im 20 days late for my period was due on the 1st of november. Had sex about 1 month and a half ago only using a condom and 2 nights after that got what I though was my period but not sure now. 2 weeks ago I took 2 pregnancy tests and both negitive. Took up smoking about 1 month and a half ago. I take zoloft for my depression but have for the last 5 months and it has never affected my period. In the last 3 months have moved to a new place and have been x100 happier and I've always had my periods on time so its very unusual to not have it 20 days after I was due.
Asked Nov 19, 2014

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