Surah Ar-Ra'd, ayah 8

ٱللَّهُ يَعۡلَمُ مَا تَحۡمِلُ كُلُّ أُنثَىٰ وَمَا تَغِيضُ ٱلۡأَرۡحَامُ وَمَا تَزۡدَادُۚ وَكُلُّ شَيۡءٍ عِندَهُۥ بِمِقۡدَارٍ ٨

Allāhu ya'lamu mā tahmilu kullu unthā wamā taghīdul-arhāmu wamā tazdādu wakullu shay'in 'indahū bimiqdār

Allāh knows what every female carries⁶²⁹ and what the wombs lose [prematurely] or exceed.⁶³⁰ And everything with Him is by due measure.