Three things tend to push families to the edge:
The baby that's coming. The crib doesn't fit. The nursery is also the office. Your due date is a deadline you didn't plan for.
The repair list that won't end. Roof. HVAC. Deck. Basement leak. Every fix opens up two more. You've been "just about to handle it" for two years.
The kids' stuff that took over the house. Toys are everywhere. The playroom is also the dining room. The dog has nowhere to go. You can't host. You can't breathe.
You already know you need to move. You just don't know how to pull it off: what to do first, what your house will sell for, what you can afford next.