Hi, my name is Joy. I am on here because Im really confused with what is happening with my body right now. My LMP was 06/18/2010. I had intercourse with my fiance 6/25 7/1-7/6 and my I have a normal 33-35 day cycle. I have been experiencing very mild lower abdominal cramps for the past week. My pd is due tomorrow 7/22 but on monday afternoon 7/19 I starting spotting this light red/pinkish color (only enough to use a panty liner). It stopped by noon today 7/21. My normal period comes early morning (wake up time 6AM) , and is heavy from start to finish. I went to the doctor and got a blood pregnancy test on monday 7/19 which came out negative. I wanted to know if this could be implantation bleeding. And if so, am I right when I say the pregnancy test (blood) wouldn't come out positive until 3 days after implantation takes place or 5 days with a urine test due to the hcg hormone not being released until the implantation has completly taken place. If anyone has any input please dont hesitate on replying. Thanks a bunch!