Omg plz help

Jasmine • Young married and have child. Ready for more kids!
Period 3 days late but pregnancy test say negative..... Help me you guys. This never happen to me this y I'm so lost. I need answers. Should I go to my obgyn or wait. Any suggests please help figure out what's going on n my body.... Anyone someone plz help. Me n my hubby want another babyg*&& I'm lost of words because in know what's going on or at to do