Light Bleeding After Possible Conception: Is It a Sign of Pregnancy?

Question
Hi,

I am 29. I have no children. My question is . MY husband and I had unprotected sex on march 9th . The next two days after that I started to have very light bleeding that just eventually stopped. This was around the time I expected my period. I've never had a period like this before. it's usually normal and lasts for 5-6 days. We have continuously had unprotected sex . I've taken several pregnancy tests and there all negative. I wonder if it is too soon to tell and is that light bleeding possibly implantation bleeding?

                             Thank You,
                               Anna

Answer
When was the first day of your last period? If you were due for your period on March 9, then you probably started your last period on February 10. If you have a 28 day cycle, youo would have ovulated on February 23 and you could have conceived if you had sex on February 22,23,24,or 25. If you did become pregnant, a pregnancy test would not show a positive result until 14-21 days later. The bes time to take a pregnancy test is seven days after missing your next period. If your next period was due on March 9, the best time to take a pegnancy test would be after March 16. It is normal for your period to only last 2 days.