Pregnancy is a possibility since you had unprotected sex, but the type of bleeding that you experienced is not typical of women who are in the very early stages of pregnancy. Implantation bleeding can occur anywhere from 6-12 days after possible conception, but not every one has implantation bleeding. When they do, it generally consists of light pink or brown spotting that lasts a few hours or a few days.
If your period only lasted one day and was very light, wait a few weeks and then take a pregnancy test. If it is negative and you miss your next period by a week or more, repeat the pregnancy test. In the meantime, if you re not planning a pregnancy, do not continue to have unprotected sex. Either abstain from sex or use condoms from start to finish for each sex act.
22. March 2012
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