According to Bible preventing is a sin?

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In the Bible it says

Before I formed you in the womb I knew you, and before you were born I consecrated you; I appointed you

What is your though on this we’re married 9 years and have had 8 pregnancies and live 7 children, according to bible prevention from getting pregnant is that a sin? I think I is just want to hear your thoughts on this

Thank you everyone!!!! A lot good comments and thoughts !!!!!

After reading this came to conclusion that

If you walk right in front of God with fear you will not hesitate to trust him and except children Blessings from him his our HeavenlyFather he cares for his children and he will not banded any of us !!! 😊

“What is man that You take thought of him, And the son of man that You care for him?!”

Isaiah 49:15

"Can a woman forget her nursing child And have no compassion on the son of her womb? Even these may forget, but I will not forget you.

Matthew 10:30-31

"But the very hairs of your head are all numbered. "So do not fear; you are more valuable than many sparrows.”

AMEN!!!!!!!