"Being committed to building a family, becoming a mother and raising a child with love and awareness is for me, the single biggest responsibility a woman could have," she wrote in her first post Monday.
"Giving birth was the most intense and life-changing experience of my life... I never felt so vulnerable but so strong at the same time."
"I was so present to witness the biggest miracle in my life happen before my very own eyes," her post continues. "To give life to another being – what a gift!"
Sounds like motherhood suits Gisele! Can't wait to see new pictures of little Benjamin!