1.5 weeks early for your period.you got a heavy flow for one day and now it is light.The pregnancy test showed negative. Is there a possibility Im still pregnant Having sore boobs nausea cramps?

The body does not adhere to a calendar, sometimes your period will come late, sometimes early. When it comes can be influenced by physical exercise, sleep, stress, food intake, a bunch of stuff.

Breast tenderness is very common symptom of pms and menstruation as well. Cramping during your period is also normal, your uterus is contracting to expel what it considers waste. Nausea, not as common but not unheard of, and may be caused by something else entirely.

The flow of your period can fluctuate wildly, even during one event. Heavy and gloppy one day, light and nearly transparent the next. Sorry to be gross, but it's a normal body function.

If you have your period, it is extremely unlikely that you are pregnant. Menstruation is the female body's way of disposing of the internal preparations that it made for pregnancy just a few weeks ago. When the body realizes "hey, there's no fertilized egg here!" it flushes what it now views as waste matter.

At home pregnancy tests are shockingly reliable and accurate, even within a few days of fertilization (if the right test is purchased) so if the test said no and you have your period, I would say you are not pregnant. They symptoms you describe can be explained as above.