I was advice to take another pregnancy test with my first morning urine.should i wait until my next period is due.3 more days b4 end of mth& no period?

Probably: Those pregnancy tests are pretty sensitive to early pregnancy but on the other hand each person is a unique individual in a unique situation. Wouldn't hurt to wait a few more days to test but I also know some women who will test every morning for several days. But that's probably over-doing it. Just wait a few days and test again. Let your doctor know. There may be other factors to consider.