Q. I’ve been on the DEPO shot for years, then I switched to the IUD method on October 23, 2020 but then got it removed a few months later. I started the DEPO shot again on June 28, 2021 then had unprotected sex several times after, could I be pregnant?

A. If you went from one method to another you would be protected against pregnancy. 
If you restarted depo after not being on anything then you need to wait 7 days for pregnancy protection.