i was born on the 14 Oct 91 (goat) and he was born on the 19 Oct 89 (snake) are we compatible?

That will be an amazing wonderful pair. Both of them know how to understand each other and make the other feel happy. This quiet relationship is full of trust, love and peace.
But you will have some difficulty on the finance, since both of you are not good at it. But he will work hard to overcome it.