L.F.
Hi,
That happened to me also. I don't remember what the levels were, maybe 90 one day and 170 two days later (I was right around 5 weeks too)...Regardless, the levels were low and I did not have ONE SINGLE pregnancy symptom! All I had was a positive pregnancy test to go on. I didn't go through AF, but I knew when my period had been, when I had ovulated, etc. Anyway, I worried a lot initially (I had miscarried before), but I ended up with a beautiful baby boy! So, try not to worry (that won't help, or change, anything at all). I wish you the best!