1) Postpartum 
• (a.) After birth; subsequent to birth; as, postnatal infanticide; postnatal diseases.
occurring after birth, with reference to the newborn. Cf. postpartum.
After the birth. Relates to the 28 day period following giving birth.
<obstetrics> Occurring after birth, with reference to the newborn. ... Compare: postpartum. ... (18 Nov 1997) ... 
(pōst-na´tәl) occurring after birth, with reference to the newborn.
Post·na'tal adjective [ Prefix post- + natal .] After birth; subsequent to birth; as, postnatal infanticide; postnatal diseases. 
Relating or belonging to the period immediately following birth.
Type: Term Pronunciation: pōst-nā′tăl Definitions: 1. Occurring after birth.
(post-na;tal) After birth.
The period of time from the moment a woman has given birth until six weeks afterwards.
After birth.
[adj] - occurring immediately after birth
describes something that occurs after birth, usually to the baby 
postpartum adjective occurring immediately after birth; `postnatal development`
After the birth.