Confused situation

Neet

So when I had my first baby I had my implantation spotting on February 16 then the next day started my period (6days) then on March 18 had my positive pregnancy test....now I just started I think my implantation bleeding does that mean I’m pregnant or just a period.

My last period was April 9th I’m not sure how many DPO I am also I am bleeding medium flow.