Can someone help

Amanda • I'm a mommy to a bueatful 3yr old baby girl who is begging to become a big sister💕❤
I am two weeks late for my period and I went to the doctor and I took a pregnancy test they said it was negative I'm have really bad cramps I'm moody and I'm having a lot of thick white discharge I'm also very nauseous could it just be my period coming or should I wait and take my own pregnancy test?