Best of luck at 10 weeks you HCG levels can already be dropping off so that is 'nt that helpful, main thing is not a lot of blood and no pain, are all good signs.
I have had bleeding in all of my pregnancies with good and bad results, it is extremely worrying I would suggest taking it very easy, no lifting, rest with legs elevated when possible and no sex, usually if you make it through the first trim you will be okay..the risk of MC drops off dramatically especially when a HB has been seen.
Good luck and take it easy.