Help!scared for my life

i had a miscarriage in dec 2016... im now almost 6weeks preg around 4weeks preg my blood test was 175 than 3 or 4 days later it was 1006 and now a week later its 20,100 she said it could be a molar pregnancy im heart broken y is my number so high ughh im confused what was ur hcg at 6weeks preg