Getting worried .? Any advice

I went and got my blood drawn to confirm pregnancy last Wednesday at 5 weeks (I THINK) levels came back at 535 . The nurse had me go back again to make sure my number was double on Monday which made me 5 weeks & 5 days and my levels this time is 3,305 .... which I thought was good but when she called she said she was expecting it to be even higher . I told her previous I that I ovulated late June on the 21st which she said made sense of my first number being 535 cause I was early . Should I be worried with my numbers .? She making me go get a sonogram tomorrow to see what's going on .

If I ovulated June 21st is the consider my conception date making me now about 4 weeks .?? Sorry I'm new to this it's my first pregnancy and just really hope for the best been TTC for a year . And I have actually still been testing and my lines have gotten way darker and appear as soon as I pee on it .