Hi, I Have 11 Months Girl Baby . I'm Expecting

Hi, I have 11 months girl baby . I'm expecting next menstrual date in around 15.04.2016. But we have temple trip from 16.04.2016 till 21.04.2016. I called up my doctor, she said take two tablets daily "Meprate10mg" to postpone.she told me to take the tablet from today o1.04.2016 onwards. I am afraid of taking tablet for such a long duration. I want to know when should I start & finish taking the tablet and how many times a day. Is it safe to use this tablet to postpone the date. Please guide me.