Ay mama, possible talaga na regla yun, lalo na kung 4 months ka pa lang postpartum at ang dugo ay tumitigil agad, ang periods natin sometimes super irregular pa after giving birth, lalo na kung breastfeeding ka. Pero since it's been a few months na since December at gusto mo malaman kung balik na talaga ang regla mo or may iba pang nangyari, mas safe kung i-check mo with your OB para sigurado, especially kung may ibang symptoms ka na nakita mo. One of my mum friends thought parang regla lang din pero may complications pala, kaya better safe than sorry talaga!