Sooo is age really just a number??

Erika • Im 27& my boyfriend is 31. We are trying for our first child together. I myself have 2 children a son who just turned 6 & my daughter will be 5 . im hoping this app helps us have our 3rd child .
Or is age a key factor.. I know google is the devil when u look up anything pertaining to your health but my man is 31 and I'm 27.. He has no kids and never had a scare.. I have 2kids and its been almost 5yrs since I was last prego. And I'm scared that either he might be getting to the age of being to old? Or is Google just scaring me..??