You're only 31. You do realize, don't you, that you still have at about 19 more years ahead of you, before you're "too old" to conceive and give birth to children of your own?
At 31, you're at the height of your attractiveness to men - physically and emotionally. After your divorce is final, get out and start dating. You'll probably meet a good man you love and who loves you, and who wants to marry and have children with you.