Question Summary:
I wanted to ask you if Farz fasting that is in the month of Ramadhaan is obligatory on pregnant woman. JazakAllah Khair.

Question Detail:

I wanted to ask you if Farz fasting that is in the month of Ramadhaan is obligatory on pregnant woman. 

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
A woman in the state of pregnancy is excused from fasting in the month of Ramadhaan if she fears harm on herself or her unborn child. She may then make Qadha of the missed fasts later.[1]
And Allah Ta’āla Knows Best                                       
Ismail Desai,
Student Darul Iftaa
Durban, South Africa
Checked and Approved by,
Mufti Ebrahim Desai.