Hello,
Periods can vary sometimes and be different than usual and it is still safe. On the other hand to be sure you are not pregnant you need to do a urinary test. If the urinary pregnancy test comes out negative (which means you are not pregnant- this means it shows only one line) than you can repeat it in 2-3 days to make sure. If it is again negative than you are not pregnant.
If your periods are irregular for more than 2 months and your pregnancy tests come out negative you will need to see ...
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