While hemoglobin in blood has magnetic properties there’s no evidence that it leads to anyone being able to feel magnetic fields. At least one study has shown evidence for humans sensing magnetic fields but the author's do not make a case for blood being the biophysical mechanism https://authors.library.caltech.edu/90480/. The earths magnetic field is very weak and the force felt on our blood is even weaker.
It’s still a debate how animals sense the earths magnetic field. However, all theories rely on special adaptions and not on the extremely weak magnetic properties of blood.