Negative Or Positive?

Menstruation: October 9-11 followed October 31-November 3 regular bleeding December 1(afternoon start) -2 spotting On Decemeber 1 in the morning 1st PT 2nd line faint line 2nd PT one line only Went to OB to have ultrasound she said not pregnant everything is totally fine.. Went home feeling sad but its okay, maybe not our time... What keeps me wondering everytime may makasalubong akong kakilala especially mga mothers na, keep on asking me are you pregnant?? Y because my belly is getting bigger dw parang tyan ng buntis tsaka yung balakang ko balakang dw ng buntis, yung asawa ko nahihilo tsaka parang nasusuka. Yung pulso ko sabi ng "manghihilot" pulso ng buntis. Ayaw ko na sa earth talaga.... Mama mommy nanay ask ko lang po maaari bang magkamali ang ultrasound? At first no baby found pero on the next test si baby nagtatago lng pala? Sorry po talaga sa kagustuhan kong makakalap ng impormasyon heto nagtatanong ako sa inyo ?