If you had an emergency contraceptive pill within 12-15 hours of intercourse, you are usually protected. It's common to experience changes in your period after taking the pill. Wait for your next period; if it's late or abnormal, do a pregnancy test. Also, using regular birth control methods is important to prevent pregnancy in the future.

PCOD and thyroid medications can affect menstrual cycles. But if you are experiencing prolonged pain and bleeding, it is recommended that you visit a gynecologist.

It can be caused due to pregnancy or an infection such as a urinary tract infection. If you are experiencing a change in urine odor consult your doctor for an accurate diagnosis and appropriate treatment. 

The normal cycle sometimes is longer or shorter than usual. But if your cycle goes on longer than 10 days or if you have severe bleeding, you should see a doctor. You should see your gynecologist for a proper diagnosis and treatment of your condition.
 

Bacterial vaginosis – one common yeast infection with symptoms such as an absence of menstruation, odorous white discharge, which accompanies a burning, itching, or soreness. It frequently occurs when the HLB of bacteria and yeast gets unbalanced due to which bacteria overgrows. Also, ensure to keep the area away from wetness and name, this lowers the chances of developing this infection. They are generally cured with a course of antibiotics.

The antibiotic usage might alleviate symptoms temporarily, and yet the main cause of infection should be treated to avoid further complications. However, procrastination in treatment can cause sterility problems later on and, particularly during pregnancy. Thus, it is recommended to see a specialist and follow the prescribed treatment prescription.