Oo, posible talaga kahit hindi pa regular ang period mo after birth, lalo na if nag-stop ka na mag-breastfeed, kaya importante mag-use ng contraception agad pag nag-resume ang intimate life mo. A few of us moms actually got pregnant right away dahil akala namin protected kami while hindi pa may regla, so definitely check with your OB about the best family planning option for you talaga!