No, especially for first time mothers. If she feels healthy, she must attempt to fast, and if she later feels difficulty, she should stop.
For subsequent pregnancies, if the woman knows from past experience that she will experience difficulty, then she is not required to attempt to fast.
We rely on our generous community to create a lasting impact and ensure the continuous operations of your Masjid as the gathering place, school, and house of worship for Muslims across the Triangle.
Those who spend their wealth in charity day and night, secretly and openly—their reward is with their Lord, and there will be no fear for them, nor will they grieve.”
– The Holy Quran 2:274