Didn't have a chemical like I thought

Anoushka • Mother to 2, boy and girl trying for number 3 .
I started to bleed after my bfp they have been testing my hcg levels which are low but tested again they have risen slightly has anyone had slow rising hcg levels and gone on to have a healthy full term pregnancy ?? Week of light bleeding I'm still pregnant hoping baby sticks but could still lose weird feeling walking around knowing I'm pregnant but u can't get excited over it yet