I need yalls help 14 days late

Hello everyone I’m 14 days late on my period I’ve tested with a dollar tree test it’s negative I’m just confused on what’s going on I have been nauseous/puking I’ve had cramping but light cramps for like 3 days and a lot of discharge and also blotting bad everytime I eat I’m burping bad and puking from the bloat I’m not sure what’s going on I’ve been ttc for 5 years and I’ve had 3 miscarriages with my last being in may 2022 if anyone know what this might be from please let me know my period is usually late 2-3 days but never 2 weeks