Ahsanallahu ilaikum, Ustadh, when a woman is pregnant and has few days, she needs to make up from last year. Is she sinful if she chooses to fast them after giving birth. Meaning is she allowed to delay them even though she hasn't fasted and checked how she feels while fasting?

Ustadh AbdulAziz al-Haqqan

It depends on if u r able to fast without problems otherwise, she can delay.