My period was due Feb 13th but it came Feb 18th. I took a pg test the morning of the 13th and it was a faint positive. I came back a few hrs later and the line faded even more. I took another one the next morning on the 14th and it came back negative. then my period was 5 days late. bled one heavy day then was on and off for 1 day. and its been spotting light pink to red since. today i had ovulation like discharge mixed with blood. my boobs are just getting worse as the days go on. is this just an off period or am i having a miscarriage? help please ladies. thanks.