See below: The hormonal balance that controls your cycle can be upset by a number of thing including stress, marked weight loss and vigorous exercise. This can lead to bleeding between periods or your period coming on a week early. The passage of a clot may be normal or could possibly indicate a very early miscarriage or possibly implantation bleeding. If your period doesn't come on as expected do a HPT
Answered 6/4/2015
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3 doctors weighed in across 2 answers
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