Hello,
To regularize the periods it is best to start with regular combined
oral contraceptive pills after consulting your gynecologist. It will help in regularizing the periods, have a lesser bleeding and predictable periods.
There are so many causes other than
pregnancy which may cause delayed menses.
The most common causes at your age is due to
hormonal imbalance, stress, anxiety, PCOD,
thyroid disorder, anaemia, diet changes, exercise, infection,
ovarian cyst, birth control pills and infection.
So as you are not having any other symptoms you can wait for one more week and if you will not resume it than consult a Gynecologist and get yourself examined and investigation done to rule out the above mentioned causes.
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr. Iven Romic Rommstein