Well, today is CD 18. I went into the doc and surprise I still have a UTI. I asked the doc. if you can be pgreggo and still test (-) with the urine test. To my surprise she said "yes". Wow. So they took some blood for a beta HCG and I shall find out in 2 - 3 days. Hoping I am...but sure I am not. I have never failed to test + before with the HPT's. We shall see.