My advice:
Based on the posts you have written in the recent past, I would advise you to wait until you guys are on a better financial footing before you bring a child into your relationship.
I have had 2 kids, I can testify that they are EXPENSIVE and are high maintenance. I still have one living at home (special needs) and while he is not terribly expensive now.... he does require a lot of our time. IE: when your child is sick, you call in sick...