One verse

Srimad Bhagavatam 3.31.4

3.31.4

चतुर्भिर्धातव: सप्त पञ्चभि: क्षुत्तृडुद्भव: । षड्‌भिर्जरायुणा वीत: कुक्षौ भ्राम्यति दक्षिणे ॥ ४ ॥

caturbhir dhatavah sapta pancabhih ksut-trd-udbhavah sadbhir jarayuna vitah kuksau bhramyati daksine

caturbhih
within four months
dhatavah
ingredients
sapta
seven
pancabhih
within five months
ksut-trt
of hunger and thirst
udbhavah
appearance
sadbhih
within six months
jarayuna
by the amnion
vitah
enclosed
kuksau
in the abdomen
bhramyati
moves
daksine
on the right side.

Within four months from the date of conception, the seven essential ingredients of the body, namely chyle, blood, flesh, fat, bone, marrow and semen, come into existence. At the end of five months, hunger and thirst make themselves felt, and at the end of six months, the fetus, enclosed by the amnion, begins to move on the right side of the abdomen.