Confused by Unusual Bleeding

Question

Okay, I have a question about implantation bleeding and/or an irregular period. My cycle is almost 29 days to the tee every month. On day 21 I had completely unprotected sex and he did not pull out. About six hours later I started a very light period that lasted only about 48 hours then stopped. I usually have VERY heavy periods that last a whole seven days, and the fact that this one was so light, short, and early scared me. It has never happened to me before. I also am under absolutely no stress, so I know that it cannot be a factor.
Kimberly

Answer

Last Updated: February 14, 2014
Implantation does not occur immediately after intercourse, thus bleeding that occurs six hours after intercourse cannot be implantation bleeding (at least not from that act of intercourse). It is possible it is implantation bleeding if you had intercourse a week or two earlier which resulted in conception. There are many other reasons besides stress, menstruation, or implantation for unusual bleeding. Often, the cause need not be a cause for concern, as is transitory, such as an occasional anovulatory cycle. Other reasons for unusual bleeding can be more serious, and are best explored with your physician. A woman who charts the biological markers of her cycles will have added insight into the nature of unusual bleeding she might observe, placing it in the context of the timing of events of her cycle. If you are interested in learning to chart your cycle in this way, you are invited to consult a professional from our website.

Sheila St. John

Answered By:

Sheila St. John
Sheila St. John is the Executive Director of the California Association of Natural Family Planning, coordinating the non-profit’s education and advocacy efforts throughout the state. Initially attracted to NFP as a healthy, effective method for planning families, drug, device and surgery free, her passion for NFP has grown over the last 42 years as she has journeyed with the over 900 couples she has personally instructed in its use, and been privileged to witness its role in overcoming infertility, women’s health, and the transformation that occurs in lives of men, women, and families, when we embrace God’s design for love and life.

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