What Causes Delay In Menstrual Bleeding During Teenage?
Go to primary doctor who will likely give you a trial of progestin.
Detailed Answer:
Hello and welcome,
In teenage women, it is can happen that ovulation isn't regular, and that may be what is happening here. When a woman doesn't ovulate, then there can be spotting, left over blood (dark brown), a heavy period, a light period, an early period, a late period, or no period. So in other words, the bleeding isn't regular.
That you have had normal periods in the past makes me believe that your anatomy is capable of normal flow. If you still have a hymen, it may be that a bit of old blood stays behind it which may be what you are seeing when you look.
When normal periods have not come for 3 months, then it is time for an evaluation. Usually we start with giving a progestin for a week (such as Provera) which helps mature the lining of the uterus if there has been enough estrogen; and when you stop taking the progestin, a period will come. If a period comes within a few days of stopping the progestin, then we know your ovaries are making enough estrogen. Then the choices are to see if normal cycles resume, or if you might like to have it regulated with oral contraceptives.
If the progestin-withdrawal does not cause a period, (which it usually does in someone who has had normal periods in the past), then we start looking for other causes of amennorhea (absence of periods) - by doing hormone blood tests and imaging studies (such as ultrasound).
So, if you can get in to see your primary doctor, he or she should be able to help you out without you having to see a gynecologist.
I hope this information helps. Please let me know if I can provide further information.