Welcome and thanks for the query
As you are having leaking per vaginum there is risk of preterm delivery for which doctor has prescribed duvadilan
which will help in relaxing the uterus.Betamethasone
inj is given for lung maturity of the fetus.Regular followups are required.On ultrasound
examination , funneling of cervix is seen if there is dilatation.Other tests are also done like non stress tests , biophysical profile
etc.Strict bed rest is required.
Best wishes and good luck