According to the GTG 43 - A discussion should take place with women regarding induction of labour after 37+0 weeks of gestation.
The case for intervention (after 37+0 weeks of
gestation) may be stronger in those with more severe biochemical abnormality (transaminases and bile acids).

A large study based on historical data suggests that immediate delivery at 36 weeks of gestation without fetal lung maturity testing or steroids was optimal . ( The Obstetrician & Gynaecologist 2016;18:273–81. DOI: 10.1111/tog.12308) .
To answer this question prospective testing in a randomised controlled trial is required.

The recurrence rate of OC is 45 to 90%

Estrogen containing contraceptives can lead to recurrence of Cholestasis like symptoms

For transaminases,gamma-glutamyl transferase and bilirubin,
the upper limit of normal throughout pregnancy is 20% lower than the non-pregnant range
Source- GTG 43

In normal pregnancy, LFTs may increase in the first 10 days of the
puerperium. In a pregnancy complicated by obstetric cholestasis, routine measurement of
LFTs should be deferred beyond this time, and can usually be performed before to the postnatal follow-up visit. LFTs at 6 weeks after delivery and an appointment at 8 weeks is a suggested model.