YOu know, don't sweat the whole "perfect timing" for a second kid thing. People worry far too much about the "right" spacing of kids. IMHO, having three myself, the birth order or spacing means less than their innate personalities and how they line up those personalities with each other.
You're young, you have many fertile years ahead of you, no need to feel pressured. Take all the time you need to be SURE H is trustworthy before you take that step again.