Bubble bursted?

After celebrating my positive pregnancy test on Monday morning, I can honestly say I was on Cloud Nine.  I was thinking positive thoughts and just "knew" this baby was going to be the one we took home.  Keep in mind that I got my BFP at 8 DPO...I still had 6 days until my period was even due.

Fast forward to Tuesday afternoon.  Took another test because I am a serial tester.  Negative.  I was paralyzed.  I'm not one to believe in "jinxing" yourself and with all of my pregnancies I have shared the news early because I am simply too excited to keep it to myself.  I had told a few co-workers and my family about this.  Specifically people who have been by my side through my previous 4 losses.

After taking that test, my husband went out to get me the always-reliable "First Response" tests because I had been taking internet cheapo tests.  The First Response came back negative Tuesday afternoon AND this morning.

What the heck is going on!??!?!  I KNOW there was a line.  My husband even saw it, so I wasn't squinting-in-the-sunlight-with-a-flashlight looking at it.  It was plain as day.  I wish I had taken a picture of that sucker.  Here are my theories:

1.  Chemical pregnancy - essentially, another miscarriage
2.  Faulty test?  I'm going to wait a few days and test again because my period isn't due until Saturday/Sunday.

I'm on Crinone gel, which has made me a hormonal mess.  I spent over an hour last night crying to Tom and texting two of my closest friends through tears.  I've had some fleeting nausea and on Monday I was all-out SICK (vomiting, nausea, etc.)

Does anyone have any other ideas?  I'm trying to hold out hope, but it's fading...