It's possible: That if you started bleeding the day after sex, that sex itself either caused a small tear in the tissue in/around the vagina, or another possibility, especially if intercourse was painful, that you may have an infection. Just as likely that you have cycle irregularity due to age, as many young women do. Nevertheless, it's best to consult with your doctor, have a pelvic exam, discuss contraception
Answered 9/28/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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