Pregnant?

I have very regular periods, always have. Always spot on, never a day late. Well I was 4 weeks pregnant in December and miscarried on December 24th.

The day I was suppose to start my period this month, we had sex and usually when I have sex a few days before my period start date it’ll make me start.

I’m only 3 days late, and still negative pregnancy tests but I’ve only taken them at night time.

I have no period like I said and milky white discharge.