Bloodwork?

So I had bloodwork done at my first appt when I was 8 weeks. I'm now 22 weeks and they haven't had to do any lab tests (blood or urine!) since. Is that normal? I know in a few weeks I will have my blood drawn for the glucose test, but that is it! I guess I shouldn't complain, but I just feel like they would want to be checking more things 🤷‍♀️