Babies are made and delivered by storks.
They have a huge factory where you are supposed to place your order by writing specifications via a letter.
Then the storks will put those expectations in a baby making machine and when your product is ready they will beak deliver it themselves to you.
You can ask for specific traits but storks are smart and they will deliver to you what you deserve and not what you need.
Its the manufacturing that takes time not delivering so you have to wait for 9 months.
Its better than elephants it takes like 16 months for them.
P.S: Here is a documentary immortalizing the journey of a stork in delivering a troublesome but cute baby.
This is picture of bossman stork in the baby making factory:
This is stork doing his deliveries:
If you still don't believe me this is a picture of @football_m29 when he was in the factory, you can ask him as well.