Levels

So yesterday I received a faint positive on a dip test followed by a faint positive on a First response at 9dpo. Since I’ve had a previous miscarriage my doctor went ahead an ordered blood work today at 10dpo. I just received my results and they want to do another blood test Wednesday. My hcg is 18 and my progesterone level is greater than 40. Is that normal this early in pregnancy?