Steve knew how that felt - not the future-children, not the fear that you wouldn't be available to raise those children - but the fear that you'd had your one shot at love? Yeah. After losing Peggy, Steve had almost lost hope.
So it was definitely a time for hugs.
"We have time. We're going to get the chance to have a family."
And okay, maybe they were rushing a bit (said Mr. Glacier-Pace), but Steve was okay with that. He was the kind of man who was confident in his decisions, and he knew that he really cared for Jean.