I would be very, very, careful with this.
Having a miscarriage totally changes your perception on things. I lost a pregnancy at 5 months along, and the grief was overwhelming for a very long time. Especially, when we already have children.
When you`ve already experienced motherhood, there is a grief of losing a child, and all the things you wondered about. The hopes, the dreams,... It can cause a desire, and maternal instinct to get that feeling back at a high cost.
You might not like hearing this,..but if I were you,..wait and see how you feel in a year. You might lean more towards your husbands thoughts, or you might be in exactly the same thought-process as now,..but at least the decision will feel right, and prepared.