I am 29 years old, I am taking paxidepcr12.5 (after brkfst) and 1/4 rivotril 0.5 mg (aftr all the 3 meals) as prescribed. My problem is that I was supposed to have my periods on 16th may according to cycle but am still not down. I started my medicines from may 14. What could be the possible reason for this delay. Is it normal or should I consult a doctor for this? urgent guidance required, thank you.