Injection depo

Eh don't worry lah, depo is very effective mummy, it works from day 1 so you're covered! A few of us tried depo and none of us had surprise pregnancies while on it, so you should be fine. But if you're really anxious about it, best check with your doctor or clinic just to put your mind at ease, especially if you want to confirm the exact timing of when it becomes effective for your situation.