How long did it take to get to HCG zero?

Lisa • 32, happily married, mommy to a big fur baby and 2 angels.
I started spotting last Sunday. I was only 4 wks, 4 days along. I was at HCG 150. Over a week later, I'm still bleeding, and I'm still getting positives on pregnancy tests. It's so incredibly frustrating! I just want to move on from this horrific experience and my body won't let me. 
How long did it take you to get below 5?