While both of you came to understanding to leave peacefully, then you also should come to understanding on the following points to avoid any future hassles:
1. Which parent will get the custody of the child? Whether the other parent is interested to get visitation rights or not? If so, how frequently.
2. Whether the female spouse is working or not? If not is she asking any permanent alimony in lumpsum or a percentage of property?
3. If the non-custodial parent is going to give the custodial parent the maintenance for the child till he becomes major? If so, whether it is lumpsum or monthly amount.
Once all these issues will be settled, reduce them in black and white and make them part of mutual consent divorce petition, so the matter may end peacefully.