Need advice....

Hilary • Married💍 02-18-23 Ricardo Jr “RJ” 7-4-19 Gianna Mońic 6-29-21

Was supposed to start my period Thursday...still haven’t started. Been ttc for 2 months and tests have come back negative. Did get a uti and prescribed antibiotics on Monday, so not sure if that has anything to do with it. Never in my life on or off birth control have I missed a period...any advice? Idk what to do next.