10 days late but 4 negative tests

Missed my period by 10 days so far, took a test on day 1, 4, 8 and 10 and all negative. (3 of them CB and one cheap one) never had this with my first child, was showing positive pretty instantly after missed period.

All the other factors of missed period don’t really apply to me but don’t want to look into possible early pregnancy symptoms in case they are not.

Anyone else had this?