A vow to fast on Mondays and Thursdays for nine months, then four months passed and he did not fast them!

The questioner:
Please, my brother Mashari from Hail. Peace be upon you. And upon you be peace. May Allah keep you in goodness. May Allah give you life, please go ahead. May Allah keep you safe, but I have a question I want to ask the Shaykh, please. My question is: I have been married for four years and my wife did not get pregnant. Now she has become pregnant. Before the pregnancy, I swore an oath, saying, "By Allah, if my wife gets pregnant, I will, if Allah wills, not fast for nine months until her delivery, every Monday and Thursday for the sake of Allah." And now she is four months along and I have not fasted. I do not know what is required of me.

The Shaykh:
My brother, the vow is obligatory upon you.

The questioner:
It is obligatory upon me. It is obligatory upon you.

The Shaykh:
Yes, based on the saying of the Messenger (peace and blessings be upon him) The vow, and Allah the Exalted said, "They fulfill the vow," the vow. Allah the Exalted said, "And let them fulfill their vows," the vow.

The questioner:
Okay, Shaykh, but now she is four months along. So what do we do about the four months that have passed?

The Shaykh:
You fast them. You make them up.

The questioner:
I make them up.

The presenter:
May Allah reward you.

The Shaykh:
Yes.