Does menstruation occur after being pregnant?I'm really confused.The pregnancy test kit came negative..

If you are menstruating and showing a negative pregnancy test, chances are you are not pregnant. False negatives and spotting during pregnancy are possibilities - talk to your doctor.

It is possible to be pregnant and have your first period, but it is normally lighter and shorter.

False negative on tests are common esp if testing too early.

You did not really provide any good information.

But try waiting a couple more weeks and then test with first urine of the morning if you think you are pregnant