Oo normal lang yan! A few of us moms experienced the same thing, after the first period comes back, sometimes irregular pa rin for a few months, lalo na if you're exclusively breastfeeding kasi it can delay or skip periods. As long as you're not experiencing pain or heavy bleeding when it does come, usually okay lang. But if you're worried or it keeps happening, better to mention it sa OB mo during your next checkup para ma-ease your mind, lalo na if you're not using contraception pa.