So relieved!!

Had my first blood draw at 3 weeks 5 days, and it was 91. Had my second yesterday and I was 4 weeks 6 days and it was 3415!! That’s way higher than I expected but I’m so happy! Dr said he’s happy with my levels. I go the 18th for an ultrasound. Also my progesterone level was 14.5 and he said that’s good and I don’t need supplements. I’m so relieved and feel like I can breathe that this baby is where it’s supposed to be. But my question, that seems high based on my first draw, could there be more than one baby??