Sorry for the late reply and inconvenience.
Thanks for all this additional information.
I understand your concern.
And it’s my first privilege to pay attention and provide you with suggestions to relieve your discomfort/ worry.
As such there can be a variety of causes of a missed period like hormonal imbalance, weight gain, weight loss, PCOD, thyroid dysfunction, pregnancy to name a few.
The chances of pregnancy are less likely if you performed the test a week after the missed period.
Your bleeding can be caused due to hormonal imbalance.
Hormone fluctuations can occur due to changes in diet, changes in sleep patterns, exercise routines, stress levels, etc. It can also be caused by any new medications even over the counter supplements or any recent illnesses.
So, you should consult your gynecologist and your doctor may advise some form of progesterone to induce a period and further investigations like ultrasound, blood work like Thyroid function test, LH, FSH, etc may be advised for further diagnosis and management.
Hope I have been able to clarify the situation for you and helped in resolving your query.
Let me know if you have any further queries so we can discuss it thoroughly in every aspect.
It’s my pleasure to continue this conversation until you satisfy.
Waiting for your response.