Is Primolut N Safe To Take To Induce Periods For A Pregnancy?

I am Priya.24 years old.I got married last year.for the past 6 months we are planning for baby.my period got late by 24 days ie 54 th day today.but home pregnancy test and lab urine test shows negative.I have consulted a gynacologist and she advised me to take primolut n to get periods.If suppose am pregnant means is there any harmful to take that tablet.I am in confusion now.please help me regarding this.Thankyou.