I have a friend who is expecting her seventh child next month. She was my secondary school classmate. She is a qualified medical practitioner and has chosen to stay at home.
I have another secondary school classmate friend who has four kids. She is a qualified pharmacist and has also chosen to stay at home.
I have other friends with two or three kids but are still out there working because they need to, or they want to.
Some mothers prefer to be at home to spend as much time as they can with their kids, watching and helping them grow up. Some believe they can still do it without staying at home so they continue working. Some, whether they want to or not, need to be at home due to certain circumstances.
Some who choose to stay home can depend on their husbands to bring home the bread. Some are lucky enough to continue to live the same lifestyle as before - shopping, travelling, maid or even maids, car, personal luxuries. Some cannot depend entirely on their husbands and have to find ways to earn supplementary income from home and cut down their spending, get rid of the maid, stop shopping and travelling.
Meanwhile, some totally can't afford to leave their jobs and have to continue working, employing a maid to help with the house and kids. And some prefer to be 'working mothers' and not stay at home to become a 'housewife'. Whatever it is, all mothers are working mothers. The only difference is that some are salaried and some are not.
Someone once said the phrase "working mothers" is redundant.