It appears that your dday(s) are only a few short months ago.
Mine was more than 20 months ago and I still think about the A. I'm sure this is normal and I understand it is not much fun.
On the positive side, you and your H are now being honest with each other and are trying to rebuild a new, real relationship together.
Understand that you will have to work through the pain and the fears as well as learning about each other again, for quite some time.
In my opinion, though, this is not the best time to consider bringing a child into your family. When a baby comes along, many things will change. Mostly, these changes can be wonderful and I hope that you will both have that joy when you feel sure of your relationship without fears or doubts.
Now is the time to concentrate on the two of you, while it is just the two of you. It can be a time that you will cherish and be glad that you had the time and opportunity before you move on to the next phase in your marriage, if it is meant to be.
I will respectfully suggest that you wait awhile longer before having unprotected sex.
I promise you, you will be glad you waited.