Remember that for a full time, live-in worker you will be the sponsor. Visa costs, repatriation flight.
And for all I know you might also have to do health insurance these days - etc etc - it's not just the monthly salary you are committing to.
Many of the Filipina 'girls' wirking in the Gulf altho' single status are actually married and have often left their own young children at home with relatives. Those would probably understand the care of a toddler better than the unmarried. And might be more reliable, less likely to hitch up with a man and leave.