Well, I think at the point that you start discussing preventing death or injury to the mother you have moved far beyond trying to guess the status of true conception, fetus or not, so why would you use that as as retort in this case?

Since abortions are generally only performed when there is obviously a viable pregnacy or fetus I have difficulty with most of your arguments, as usual.

Also since abortion, sucking the fetus out from the woman's womb one way or another, can also cause health problems, even death for the mother, wouldn't it be simpler for men like you who would suggest that's it's fine for a woman abort a fetus to simply make a small incision in their own body, say in their scrotum, and suck out their testicles instead? Then we wouldn't have to bother with the discussion of life and death issues at all.