This depends on community and attitude. In a conservative society, the mother may said- Oh kalmuhni (O black faced- You will not go out from house now onward- otherwise, i'll break your legs. A more liberal mother may ask he to arrange meeting with the boy and inquire about family details. In certain communities there is no issue even if the unmarried girl gets pregnant.
No,no sir, if the girl becomes pregnant, Girl parents can't remain quiet. At that time situation becomes more critical. Parents don't understand, what to take the next step?
I have said 'in certain community'. I really witnessed this. I was posted in Shillong. One day, somebody said during gossip- 'My neighboring unmarried girl gave birth to a child." Nobody responded. He repeated this thrice. Then one said- why are you saying again and again. What is issue. At this, the colleague said- she is unmarried mother. Came the retort- You need not get married to be pregnant. In certain communities, especially matriarchal, only mother is significant. Even for admission in school, mother's name only is relevant. Marriage or no marriage little matters. Property is inherited by daughter and not by son.