first it was dark, now it's light. help!

[mpatty01]

i do not understand this at all?
at around 12:00 noon today i took two test strips. i showed them both to you guys, and everyone including me thought it was positive. so now i'm just getting home at 11:30 p.m and it's a lot lighter than it should be? why? aarrgh.


i don't think the one i just took is positive? but am i ovulating? my husband is just getting home, so we're just now getting to try.

help me.