Feeling Frustrated!! Help!

Ok so I had what looked like positive opks on 2/4 and 2/6 (a clear negative on 2/5 :/)

(We dtd 2/3 through 2/6)

Then I took a hpt that I thought looked like it had a very faint line but it was so thin now I think it might have been a evap line.

I had to leave work 2/8 because I came down with stomach flu symptoms. (nausea,chills,backache,stomach cramps) Still feel a little uneasy after I eat but much better than monday.

Now 2/10 and today 2/11. I have been spotting. Was pink and light all day yesterday then got a little heavier at night and I woke up with red on my underwear (tmi)

Any ideas for what's going on???

Any help appreciated!

(Sorry for such a long post)