Why is my brown cum concerning at 18?

If your period commenced on August 9th, it is highly unlikely that it is a pregnancy at this point. Usually, waiting for two weeks after intercourse gives the most accurate test result. A home pregnancy test that detects hCG levels can be used for early detection. Keep in mind that stress or other life situations can also change your cycle. Wait a bit longer and then try the test if you need to. 

You might be suffering from Polycystic Ovary Syndrome often mentioned as a possible cause of irregular or missing periods and pain in the lower abdomen area. One of the most common symptoms of PCOS is pain, as well as irregular periods. This is caused by the imbalance of estrogen and progesterone, some hormones that the ovaries produce. For the treatment of PCOS, engage in exercise, lose weight, and follow a healthy diet.

Infections can cause abnormal vaginal discharge or spotting, it's essential to ensure that other underlying causes are considered and addressed. There may be hormonal imbalances, polycystic ovary syndrome (PCOS), uterine abnormalities, cervical issues, or other gynecological conditions.

If sperm has been in contact with the vulva but no sexual intercourse took place, there is very little chance of getting pregnant. You acted so quickly by popping the "i-pill" that within an hour of the incident you lowered the risk even further. However, it may cause some mild side effects such as nausea, headache, or irregular bleeding.

Primolut Nor Tablet cannot cause a miscarriage.. It is primarily used for menstrual irregularities and endometriosis.. However, it may cause some side effects like NAUSEA, headache, and irregular bleeding. Consult your doctor before taking any medication. 
Remember to always take caution with medication..

Fee­ling anxious is understandable. Sometime­s stress impacts your menstrual cycle, causing de­lays or irregularities. If you haven't e­xperienced pre­gnancy indicators and it's only been a fortnight since unprote­cted intimacy, detecting pre­gnancy might be premature. 

It is entirely possible­ to have a natural childbirth experie­nce even in the­ absence of early pre­natal reports from the initial four-month period. The­ diagnostic assessments conducted at a late­r stage can frequently provide­ crucial insights. Maintain adherence to the­ guidance provided by your healthcare­ provider. Continue taking pre­scribed medications as instructed.