Low beta

I transferred on a 04/11 and got my first positive on the 16th. I have been getting positives all week and had my BETA draw today

10dpt 04/21/2025 - 24 beta level

They said they want that 50 or higher and to redraw wednesday. I have been really crampy as if i was miscarrying

I am worried and scared. This is my first transfer after i lost a child at 4 weeks old.

Please tell me your experiences ? Did it double? Should i expect to miscarry?