No, Russell Wilson and Ciara did not wait until marriage to have sex. They were engaged in March 2015 and married in July 2016. Their first child, Future Zahir Wilburn, was born in May 2014.
While the couple has spoken about their commitment to faith and family values, they have not publicly discussed their decision to have a child before marriage.
It's important to note that personal choices regarding relationships and intimacy are deeply personal and vary greatly.