Wa'alaikum assalam! Sayang, ini perkara yang kena tanya doctor langsung ye, timing suntikan perancang tu important untuk kesan protection dia, so jangan delay lagi, gi clinic atau klinik kesihatan nearby and ask them properly about your situation. A few of us mums pun ada yang ambik contraception injection, dan doktor always say kena on schedule, so better check with your doctor ASAP biar dia boleh guide you properly on what to do next, they'll assess your case jer, okay?