Ay, mama, medyo mainit pa talaga ang katawan ng kakapanganak kaya mas prone sila sa complications pag nag-hamog, lalo na kung may open wound pa from delivery, mas mataas ang risk ng infection at delayed healing. Three weeks and three days is still considered postpartum period, so maganda kung pwede mong i-avoid muna ang hamog exposure or at least mag-layer ng matotong damit and stay in a cool, dry space. Pero para sure, better ask your OB or midwife about it, especially kung may specific concerns ka sa healing mo, kaya they can give you personalized advice based sa delivery mo.