My HCG level worrying

Steph

I got the BFP on my clear blue went to the ER got a BFP on there test. Them they said we gonna do bloodwork my level are low I was at 14 DPO. I’m scared this is my first I’m 35 me and my husband been struggling . Tomorrow I have another blood test to see if my level went up. I so so worried.

Any words of encouragement. Anyone went through this before