Line progression? Someone plz help..

Katelyn • • 👼🏼 1/21/16 • 🌈 1/19/17 • 👼🏼 2/17/18 • 👼🏼5/24/18 • 🌈 3/19/19 • “The pain that you’ve been feeling, can’t compare to the joy that’s coming.” Romans 8:18
Today I am 17 DPO and I am freaking out a bit.. I got my first round of bloods  one on Monday 15 DPO, the morning after my BFP! My levels only came back at 24 and was told that was low. My doctor says I should be 5 weeks, but taking into consideration all details of my cycle, I don't think I'm that far along. Please tell me what you think. I'm scared to death, this is my rainbow baby!