Why no periods after taking unwanted 72 doses?

In this case you should go for second opinion of another experienced doctor. They can evaluate your case and then you can come to a conclusion.

I urge that any medication to terminate pregnancy should never be used without consulting a doctor. The misuse of the kit can cause discomfort and should be used only as prescribed. Missing periods after use of the kit could be a sign of some other problem. A gynecologist recommended for a full examination and clear advice on what to do next.
 

You can confirm either with a home pregnancy test or a urine test to confirm pregnancy. 

there are SEVERAL reasons for delayed menstruation in teenage girls. Puberty timing varies widely. Hormonal imbalances can delay menstruation. Excessive exercise or underweight can impact menstrual cycles. Stress or medication can also delay periods Consult with a DOCTOR.. 

You are likely to develop PCOD if you suffer from polycystic ovarian syndrome. The symptoms correlated with this syndrome are things like acne, hair growth, weight gain, and irregular menstrual cycle. You need to be careful with your diet, exercise regularly, and undergo stress control practice to control PCOD. Alternately, the use of medicines when PCOD progresses may also be needed occasionally.

A faint line on a pregnancy test can indicate a positive result, but it's crucial to follow the test's instructions for accurate interpretation. For reliable results, repeat the test using the first morning urine. 

The reason for the worsening of your periods and insomnia may be the hormonal changes from the surgery or the stress that comes with it. Period insomnia is a common problem that women face. You may also want to learn how to help yourself. Perhaps you could try some relaxation techniques like deep breathing exercises or relaxation baths. If it does not resolve on its own, seek medical advice as the best way to deal with those problems may be to find the one most suitable for you.