I know perhaps it is silly to worry when I will probably never know. I had unprotected sex with my boyfriend on Jan. 28, but he "pulled out" before ejaculation. On Feb. 4 I had light pink blood and thought my period had come. For four days, I had very very light spotting, either pink, red or brown (depending on the day), and became worried that this was implementation bleeding rather than my period. The next day however, on the 8th, it got a little heavier. A regular period lasts for me about 7-8 days with only a couple heavy days around day 3 or 4. However, today, the 11th, instead of going away, my flow became extremely heavy - soaking through a pad in about 2 hours and continuing heavy throughout the day - a dark red. The bleeding has slowed down slightly now, however it is still a steady flow and has become bright red. Is this a possible miscarriage or does it sound more like an irregular period? I have small cramps but they come and go and are not painful. Thank you!!