Thanks for posting your query at DoctorSpring.com
Yes , the B HCG levels are quite within the normal range, and are rising normally.
However, beyond the 6th week, it is pointless to measure B HCG levels for the progress of a pregnancy.
By week 6, you should have had a tranvaginal pelvic ultrasound scan to document the well being of the fetus and visualize the cardiac activity ( heartbeat ).
Please get that done.
Wish you luck this time around.
Please feel free to discuss further.