I had gotten the depo shot for the first time ever on October 9th and went on antibiotics about a day after and finished them about a week later. Which puts on on the 16th. I wanted to wait about a week for the antibiotics to leave my system. I had unprotected sex the weekend after. He did not cum though( I’m scared about pre cum maybe ???). My last period before the shot was late September and I know the shot changes the date if u don’t do it while on ur period. It’s not November 19 and I still haven’t gotten one or any spotting. People lose their period while on the shot but that’s usually after a while so I’m not sure if it’s that or possible pregnancy . Typically people get heavier periods too. I might just be paranoid but I need advice . Thank you in advance.