Hi mommy, ang injectable talaga ay may delayed period kaya hindi ka mag-alala, marami sa amin ang ganyan, especially first few months ng injection, but ang concern mo na sobrang matagal na (September to October hanggang ngayon) ay kailangan mo talaga i-check with your OB kasi hindi normal yan, especially with the pattern na yan ng bleeding. Baba lang kasi ang hormones from injectables so walang period is expected, pero yung prolonged bleeding mo ay dapat tingnan ng doctor para ma-rule out kung may ibang nangyayari or kung kailangan mo mag-switch ng contraceptive, one of my mum friends had irregular bleeding din from hers at kailangan niya i-adjust, so huwag mag-self-diagnose pa. I understand you're doing withdrawal method pa, pero para sa peace of mind mo talaga, mas okay na makita ng doctor para ma-clarify lahat. Keep safe mommy!