I would discuss today's topic mostly from my personal opinion rather than too much backed by science or religious beliefs.
I was baffled when I heard a friend wants to deliver her baby earlier than the due date because she wants to match the birth day with some special date that she has chosen. My first reaction after knowing this was "Blood Boil". Yes, I was completely lost to hear something that I found completely ridiculous.
I can't agree more if preterm birth is done due to some health issues. It's completely acceptable. If the mother is not healthy, gets an accident, has some complication that the baby has to be taken out prematurely to save him, then it's perfectly fine. It's indeed the right thing to do, but if you force a baby out simply to match some anniversary date or some stupid historical date, that is utterly ridiculous.
The moment you decide that you want to have a baby, then that Birth & Death are determined by this Nature, by God. So, please don't say that you believe in God if what you do is against what He wants. It sounds like a High Class Hypocrisy. Let the baby comes out when he wants to. Give him all the time he needs to be mature enough to be born. If the situation arises that the baby has to be delivered early in order to save him, then do it, but please... I am begging... Please... don't deliver your baby for your own convenience. It's not a right thing to do.
The moment you are committed to have a baby, then it means you are ready to give all the time & space for him to grow healthy inside you until he is ready to come out. Don't violate such wonderful process for your own selfishness.
The moment he is born, he is bound to all the hustle and bustle of this world. He is forced to struggle to find his own life. At least, let him come out when he is ready. Don't rush him even before he is born to this world.
Your baby's birth date doesn't matter. YES. IT DOESN'T MATTER. What matters is how you raise him, how you give your best to make him a strong & good person to continue his life on this earth. No one bothers which date he was born in the end. IT DOESN'T MATTER.
Please wake up. Let your baby comes out when the time comes. Don't force him!
Please read some of the articles for reference: