Depo-Provera Shot

Hi mommies! I just need some opinion po sa mga nag take ng injectable or Depo-Provera shot as contraceptive. Nagpa inject po kasi ako during my 4th day ng period and first time to use this type of contraceptive. Malakas pa po mens ko non pero nawala siya within the day after ko maturukan. The thing is nag do kami ni mister on my 6th day since di na talaga bumalik si mens and di siya nag withdraw. Is it possible pa rin po ba na may mabuo? Kasi according po sa mga reliable sources for this type of contraceptive protected na daw po once nagpaturok within 7 days during period. Anyone po na may same experience? First time ko lang po kasi and wala pa po balak sundan si baby. Thank you. #advicepls