HCG levels at 4 weeks

Diana
I feel kinda bad that I don't remember exactly what date of my LMP because we weren't actively ttc. I know it was in the beginning of June so I'm guessing around the 3rd. I had my HCG levels tested last week at around 4 and a half weeks. Today I called the clinic to see what my HCG lvls were at. They said 577. Is that around what they're supposed to be at 4weeks or is that too low? I'm just skittle worried because I have MTHFR an I'm high risk of miscarriages. I have a follow up appointment next wed for an ultrasound and more bloodwork I'm guessing. Just wondering what your lvls are or were at 4 weeks. I'm really happy I'm pregnant, I just don't want to get my hopes up if the levels are low.