Hi
I am in 8 th month of pregnancy after 7th month frequent urination stopped . I would like to know is it serious my water intake is 8 to 9 glass per day.

I assume that you are seeing a doctor regularly?
Be aware of edema (eh-dee-ma), retention of water, which can be all over but most noticeable in the legs and ankles. Discuss this with your doctor. Don't stop drinking meanwhile.

Any other changes, such as headaches? Sometimes there will be a decline due to a change in hormone levels. Early on, the rapid increase will cause an increase in urination. Then it can level out, only to have another increases later due to baby's position/growing uterus often pressure on your bladder. This can sometimes cause a decrease, or finding it difficult to go, when there is compression on the urethra.

On occasion, a UTI, which can be common in pregnancy, may cause a decrease. If you feel that it is a substantial difference, let your doctor know as joypulv suggested.