Hello Doctor, Good day! We have planned a trip on Nov 20th,2017. My regular period date is 1st or 2nd of every month. I usually get my periods regularly but this time, I didnt get them yet. Today is 11th of Nov and I have only 10 days left. I checked pregnancy test and it was Negative. I have Trigiminal Neuralgia therefore using Carbamazepine from past 2 months but it never effected my period. I have Primulot N at home and used before (1 year ago). My age is 30, weight 85kgs and height 5.5, married but no kids yet. Please Doctor, help me to get my periods early so that I can enjoy my trip with my family on 20th of this month.