Question??! HELPPP

Okay so I just had a baby a year ago . I was on the nexplanon for a year too . I got it removed the 12th of April and went straight on depo (the shot) they say wait 7 days and use sex with a condom. But I had unprotected sex the 14th and when I got the shot I also was on my period. It ended the 14th after sex . Then two weeks later I’m spotting no heavy bleeding yet.. do I wait to see if I get a period for may? Any suggestions?🤰