Hi Doctor, i am getting married on the 27th Nov, i get my periods generally on 9th ot 10th of every month, since i will be going for honeymoon on 9th of december my doc has asked me to have Primolut - N 2 times a day from the 5th of december till 15 th of december when i will be back, does Primolut - N help in contraception too?...or do i have to use protection during my honeymoon?