Depo shot?? Bleeding after sex

Audrey👬🌈🤰 • Married mommy of two handsome boys 👬 5 &7 miscarried July 2018 🌈 and now pregnant due November 2019 God willing!🙏🏽
So i was supposed to have gotten my period two weeks ago but got the depo shot like two days before and my period never came i hadn't had sex in the two weeks ive been on depo my husband and i had unprotected sex earlier this evening and now i think my period started i dont know if it's spotting or full on period just yet.. Help