Anytime you have unprotected intercourse, there is the risk of pregnancy. However, if your last period started on April 15, May 8th would most likely have been during your less fertile time. Many things can affect your cycle, causing ovulation to occur earlier or later than usual. If ovulation occurs earlier or later, and conception has not occurred, the timing of your period may be earlier or later than usual. Additionally, things like stress, illness, hormonal fluctuations, and changes in exercise or sleep patterns may cause your period to be irregular.
Repeat the pregnancy test agiain in another week. If it continues to be negative, and you still have not had a period, consult with your doctor or clinic for further evaluation.
29. May 2012
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