Surah Ar-Ra'd Verse 8

اللَّهُ يَعْلَمُ مَا تَحْمِلُ كُلُّ أُنْثَىٰ وَمَا تَغِيضُ الْأَرْحَامُ وَمَا تَزْدَادُ ۖ وَكُلُّ شَيْءٍ عِنْدَهُ بِمِقْدَارٍ

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