A few things - nothing that Laali is doing right now is endangering her baby - women can continue regular activity including running up to a few weeks before birth of the baby. It's only in India that as soon as a woman is pregnant, everyone tries to make her stay in bed and this is very bad for the mother and the baby. Women need to continue good exercise. In the west, women are encouraged to do exercise and keep walking and even a bit of running (light). If they dance, they can continue to dance. If they cycle, they should keep doing that too unless the doctor says otherwise. But, all are right when they say that stress levels should be kept low.
Also, Laali has promised Shekhar's mom that as soon as the family has their waaris, Laali will leave Shekhar - during the wedding, there was lots of emphasis on this. So, Laali will keep her promise although I predict that Shekhar will go after her.