When will I start bleeding?

Jess • Mom of three and currently expecting boy/girl twins! 👧🏻👦🏼👦🏻👶🏻👶🏻

On Monday I got blood tests done and hcg was 4, they tested again on Tuesday Wednesday and Thursday and my hcg was 6 all three days, they told me it was a chemical. It is Saturday and I still haven’t had any bleeding? I feel like since my numbers were so low I should’ve already started bleeding, am I wrong?