7 days late, negative test

Mrs.

At what point should you go into the Dr?

I am now 7 days late according to this app and have taken multiple clearblue tests that come back negative.

Backstory- I was on Nexplanon for 6 years, with no AF the entire time. Had that removed Sept.4th and AF finally showed up Dec 22nd-26th.

Is it possible my body is still adjusting from that 5 months later?