Anyone else asked to come in for a 3rd HCG blood test?

My first was 65. Second was 168 2 days later. Now they want me to come in another week for a third before they schedule an ultrasound for 7 weeks.

When I was pregnant with my daughter they never asked me to come in for a 3rd so of course now I'm all anxious.

I'm 4w3d so I know I'm still early but the anxiety is REAL. I really want this little bean to stick.