Extremely low HCG levels😔

Has anyone experienced low HCG levels but still go on and have a heathy pregnancy? I had a doctors appt on Thursday and my ultrasound suggests I am 5w1d. Because I have had 3 previous mc's, my doctor went ahead and checked my hcg. I got my results back today and they are 153😞 we repeated the test today and I should get those results on Monday. Hoping for a positive outcome!