Negative PT

Hi mga momshies?? Ask ko lang po sana to all momshies here. First time ko to. November pa last period ko. And now i felt nausea, headache, stomach ache like gas pain po. My mother inlaw said i'm preggy. I tried PT but negative. Meron po ba ganun na symptoms sa preggy but negative ang PT? Pwd ba pumunta sa ob w/ this condition /symptoms pro negative ang pt? Hope someone enlighten me. Thanx a lot!