Depo shot + late period


I got my depo shot last month about halfway into my period. I had sex the day I got the shot and a couple times in the days after. <a href="">Eve</a> is saying my period is late by 3 days. Is my missing period because of the shot or is there a chance I could be pregnant?

Update: I took a test and it said “not pregnant” and I just started spotting today. So everything is as it should be 🙂