7 mo = 28 - 30 wks
+
6 wks (when prachi found out)
= 34-36 wks
+
2 wks of court case
= 36-38 wks
+
12 days
almost 40 wks.
But if you don't count it as 6 wks when Prachi found out and more like exactly 1 month (and given that Sumonto must have been concieved on the second C-night)...then it'd be 38 wks.