There is a scene after the miscarriage where Henry and his wife are sleeping on their bed and they see blood on the bed.
What does it mean? Is this a second miscarriage or did I miss something?
My understanding is that yes, it was a second "miscarriage". Although not a traditional miscarriage, but rather the fetus had time-traveled, which of course lead to the unborn baby's death, as it could not survive outside the mother's womb.