I had nothing at all with my DS.. No sickness, no sore boobs.. Nothing... I am now just over 9 weeks pregnant like you and while I did have some morning sickness for a few weeks it seems to have settled down in the past few days.. I also dont have sore boobs or anything really apart from tiredness. I think you are one of the lucky ones.

And the heartrate was perfectly normal I had a scan at 7 weeks 5 days and the heartrate was 166bpm!