What's on your list of potential straws that would likely break the camel's back aka your marriage?
For me it's leaving the toilet seat up. If a man does not sit down when he uses the toilet and refuses to change that behaviour I would divorce him. For that reason I have decided to add that question to my interrogation pack
Another thing is not sharing chores and counting the pennies, first sign of such behaviour

Before any kids there needs to be a probation period. Review after 3 months, no sharing the same bedroom just seeing how you like living with each other and if you really want to do it for the rest of your life