5 wks, 28 hcg, rh shot given neg blood type, nauseous and throwing up, light red blood spotting, no pain, miscarriage still?

Too soon to tell: Nausea and vomiting are usually consistent with a pregnancy being okay, as these are caused by the change in hormones during early pregnancy. The small amount of blood you are seeing could be due to implantation. This occurs due to the slight disruption of the lining of the uterus as the zygote implants into the lining. Try to relax and take it easy. Stress is definitely not good for pregnancy

Blighted ovum: HCG 28 at 5 weeks not consistent with viable pregnancy. Was 5wks date based on last menstrual period? Nausea/vomiting likely related to early pregnancy symptoms. Have you had ultrasound? Continue close follow up with your ob. Unfortunately what you are describing seems consistent with miscarriage likely due to blighted ovum (egg fertilized but viable pregnancy never happened).Sorry.