If God doesn't exist, then who created the universe?

He creates you in the wombs of your mothers, creation after creation, in three layers of darkness. That is your Allah, your Lord. To Him belongs the whole Kingdom. There is no god but He. Then, to where are you being diverted (by your whims)? — Quran 39.6

If you think there is no creator behind it then WHO taught above steps of womb to Prophet Muhammadﷺ in 7th century when he had no scientific instrument?

Do you even know that newborn babies continuously say “Allah”? This newborn baby is saying “Allah” for 15 seconds instead of crying.

If you think above newborn baby speaking is a co-incidence then why this newborn baby also saying name of Allah for 32 seconds?

Did man not see that We have created him from a drop of semen? Then suddenly he stood as an open adversary. Quran 36.77

ALLAH has brought you forth from your mothers’ wombs when you knew nothing, and He made for you ears, eyes and hearts, so that you may be grateful. Quran 16.78

He is the One Who shapes you in the wombs as He likes. There is no god but He, the Mighty, the Wise. Quran 3.6

The mother of every person gives him birth according to his true nature. It is subsequently his parents who make him a Jew or a Christian or a Magian. Had his parents been Muslim he would have also remained a Muslim. (Muslim 2659a)

• If God doesn't exist, then who created the newborn babies?
• If Allah is not God, then why 30+ newborn babies continuously said “Allah”?
• If Muhammadﷺ is not true messenger of God, then how did he know about above knowledge which is mentioned in Quran?
• If there is no God in the universe and Muhammadﷺ is not Prophet of God, then who is demonstrating miracles through newborn babies in the 21st century?
• If there are many gods in universe, then why newborn babies did not witness for their names?