slow rising HCg question:

madasm0530

i went in for my first appt on 9/12 and my hcg levesl were 1100, on 9/14 they were 1300 and on 9/17 1700. the doctors were concerend so I had an u/s on the 18th - there was just a flicker of a heartbeat and it was determined that the pregnancy was not ectopic.

I had another u/s yesterday and the h/b was 113 bpm, a little low so I am going back next monday for another u/s and hopefully we see a rise in the hb. The LO also grew about 1 mm.

my question is: should I still be concerned about the slow rising hcg or does the fact that I saw growth and a healthy-ish heartbeat negate that?