I want a baby. But we are old and sterile. 😞

We both have kids from first marriages but it makes me sad that we can't have one together. Even if we had the money for reversals I am in my 40s and unlikely to have any good eggs left. I suppose the next best thing is a grandchild.

Are there any grandparents on here? Did having grandkids fix the urge to have a late life child?