Answer :
When effective prenatal care for expectant mothers ought to commence is as soon as you think you might be pregnant.
What is prenatal care?
The term prenatal care refers to the care that is given to a pregnant woman before she puts to bed. This is very important to ensure a safe delivery of the baby.
Effective prenatal care for expectant mothers ought to commence immediately the woman thinks that she is pregnant.
Learn more about prenatal care: https://brainly.com/question/4897103