Husband Takes Home $3k+ Monthly. Possible for Wife to be Housewife?

Hi guys. I'm wondering if my husband taking home $3k+ is enough for a small family and for me to be a Stay-at-Home-Mother. I'm currently pregnant so we are expecting a child, and also a 5-Room BTO mortgage ($450k). We have already saved $50k for Reno and appliances for our future home. And we both have some savings. We don't own a car, depend on the bus/MRT all the time, and rarely do anything luxurious. Just eat out at times in the weekends and small gifts for each other occasionally. My shoppings are mainly done on Taobao and clothes are rarely over $25. My current job has long hours and need me to be alert even on non-working days. Sometimes I also need to work even after getting home or during the weekends. I also have to spend money for materials which I cannot claim. This job expects a lot but doesn't pay much, and the benefits are pathetic. I'm only taking home around $2.5k and the increments are peanuts. I don't think I can carry on when I have a child. Is it possible to survive on my husband's pay alone? Would I really need to lead a frugal lifestyle? Any SAHM with experience? #sahm #mom #housewife