Allah is All-Knower of Al-Ghayb (Unseen)

Allah affirms His perfect knowledge, from which nothing is hidden, and that He has complete knowledge of whatever every female creature is carrying,

وَيَعْلَمُ مَا فِى الاٌّرْحَامِ

Here, it was said: اللَّـهُ يَعْلَمُ مَا تَحْمِلُ كُلُّ أُنثَىٰ وَمَا تَغِيضُ الْأَرْ‌حَامُ وَمَا تَزْدَادُ ۖ وَكُلُّ شَيْءٍ عِندَهُ بِمِقْدَارٍ‌ ٍ. It means that Allah Ta ala knows everything about what every woman carries in her womb - a boy or girl, beautiful or otherwise, good or evil - and about why wombs of women decrease or increase, that is, about the time of delivery, whether early, in due time, or late.

Stated in this verse is a particular attribute of Allah Ta’ ala: That He is the Knower of the Unseen (` Alim al-Ghayb). He is aware of the minutest of this entire universe and that of everything created in it, and He is most comprehensively informed of all changing conditions of each such particle. Mentioned along with it is the fact of all-inclusive and most perfect knowledge of every stage, every change, and every trait in the complex process of human procreation. For instance, it is He alone who has the ultimate knowledge - the most sound, the most certain - of female pregnancy - a boy or girl? Or, both? Or, nothing but the accumulation of clusters of water or gas? Whatever opinion a physician gives in this matter as based on clinical indicators and educated guess cannot be taken to be any more than strong likelihood or estimate. There are times when things turn out to be otherwise. Even X-rays and more modern Imaging techniques fail to unravel the reality of this phenomena as due. We can only say that its real and certain knowledge can be credited only to Allah Ta` ala. This is what has been stated in another verse of the Qur’ an which says: (And He knows whatever there is in wombs - Luqman, 31:34).