What Is The Exact Age For Menopause?

what is the exact age for menopause. last month i had my periods and was bleeding for 2 weeks. went to see a gynecologue and he prescribed primolut for 21 days (3 pills per day). pills are over and i got my periods today. what will happen because i am scared if bleeding continues like last month. my gyneco also suggest me to have full blood count and to visit his again. full blood count must be done on 2nd day of my period. pls advise from you. thank you.