Week late for my period, 2 tests: both neg.came and lasted 3 days - few days later had pink/brown discharge and now havin watery discharge & cramps!?

Vaginal discharge: The brownish discharge could be the end of the period, but the watery discharge could be a vaginal infection. There is also the possibility you had or are having a miscarriage. I recommend seeing your doctor to have a vaginal exam to examine and possibly send off a sample of the fluid for testing. An official in-office pregnancy test might also be needed to confirm.