I keep reading on here threads from women who have 2+ children (eg age 3 and 6 months) who are at breaking point because of the father being lazy and incompetent.
Examples like them doing all the night feeds, early mornings… and still having to do lion share of household chores and childcare when they go back to work.
By living with someone before children you should be able to get a measure of how hands on they will be as a father. But if things really do change and you don’t realise how useless they are until after 1st DC comes along, why continue to carry on having more children until you reach breaking point?!