Ay, nabiguhan ka na ng schedule mo with the injection, kaya normal yan na mag-adjust agad ang periods mo or even tumigil muna, happened din sa iba kong friends after they got the shot! Better to follow up with your OB-GYN soon para ma-confirm kung ano talaga nangyari sa cycle mo, lalo na kung nag-inject ka ng hormonal contraception, kasi bawat katawan different ang reaction at importante na ma-check mo personally with a doctor para sure ka kung normal lang or may kailangan i-adjust.