Mama, this is a really important question about contraception, please talk to your OB or nurse sa health center para sure, because they know your full health history and can advise you best based on your specific situation. From what I understand, the injectable is most effective kung on schedule ka, pero kung may delays o gaps, may chance talaga ng pregnancy, kaya better na confirm directly with your doctor ano ang safest next steps para sa iyo. Alam ko confusing ang timing ng contraception, but they'll make it clear for you! Stay safe, at huwag mag-alala, your doctor won't judge, promise.