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Since your period this time was not the usual, get a serum / urine pregnancy
test done, if using urine, take special care that the test is done with first morning sample, in which the concentration will be maximum and will be better picked by the test kit.
Sometimes bleeding in pregnancy is mistaken as normal periods.
If pregnancy test is Negative, then you can ignore these symptoms and face the world with a Positive attitude, and these symptoms will pass away just as they appeared.