Hi
9th day bloodtest consider early, don't worry as long as your hcg bloodtest double up during the 2nd test should be alright. My 1st pregnancy hcg 30 plus and it doesn't double up that why end up chemical pregnancy. As for current one, I did my bloodtest on 11th or 12th day 3 embryo transfer, it consider low compare to other, but this time it double up n it shows that is growing, so you don't worry too much 1st, eat well n rest well, let the little one continue growing

Does your doc give you any support jab, which doc u seeing now?