The hard part about drawing lines like this is that it requires it to work on both sides of the life/death spectrum.
"Weeks 6 to 7
Arm and leg buds start to grow. Your baby's brain forms into 5 different areas. Some cranial nerves are visible. Eyes and ears begin to form. Tissue grows that will become your baby's spine and other bones. Baby's heart continues to grow and now beats at a regular rhythm. Blood pumps through the main vessels."
I think the point still stands that at some point you draw an arbitrary line of when mere potential for human life becomes human life, and I wouldn't draw that line early on in the embryo stage.
HN is not afraid to go anti-science when doing so fits the preferred narrative.
This implies that the heart is pumping the blood; yet I believe that at this point it's still the mother's heart doing the pumping. The author is likely fully aware that readers will be making incorrect assumptions; therefore it should be downvoted to oblivion.
The heart, whose development starts at the 3rd week of gestation, has rapid and irregular contractions capable of pumping the blood inside the vessels.
At this period, the developing circulatory system allows maternal- embryonic nutritive and gaseous changes at the chorionic villi.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3279166/
May not be 'blood' but it's a heart; doing the function of a heart.
It's life.