Basil like neunundneun I am also repeating myself so I will try to keep this short and relevant!
I find your post a bit off, to be honest. Specifically I don't have any problem with "owning" anything I've said or anything i believe. The law as it stands says that abortion is allowed after 24 weeks only if it poses a grave and permanent threat to the woman's life or health (physical or mental). That seems reasonable to me. A late-pregnancy foetus is not an entity which I feel comfortable saying can just be killed at someone else's whim. Yeah it's tough giving up your bodily autonomy when you're pregnant (I'm currently pregnant for the third time) but it's inherent in the process. And by 24 weeks there has been enough time to deal with it.
It's your second bit in brackets which I think is wrong and which has been stated repeatedly on this thread with no justification. "(unfortunately once you concede that in one, unique situation, women lose the right to bodily autonomy, it becomes much easier to argue that they also have no right to bodily autonomy in many other, non-unique situations, but that's another thread).
No, I don't think it does necessarily mean that at all. There are many situations (I've posted at length about this earlier) in which autonomy is restricted. Indeed all of us have our autonomy restricted in multiple ways at all times. The idea of complete autonomy is a myth.
'Bodily autonomy' is a complicated concept and we don't have anything like full autonomy at any point. You asked if I would support a law saying someone had to give blood every day to keep someone else alive. Yeah, possibly I would. However, more relevantly, we have laws that tell you what you can and can't do with your own blood. You can't sell it to someone else, even if they are right there waving cash in your face and you are totally happy to sell them a pint or two. That is just one of many many ways in which the state controls your body and in which you do not have complete autonomy. Are you saying you oppose that legislation? What about the legislation that says you can't sell any organs, nor can you be paid for surrogacy (beyond expenses)? Do you think that's unfair state intervention? What about laws against self-injury? What about conjoined twins, do you think one twin should be able to refuse medical treatment that would save the other's life?
It is a total myth to say that by having the choice to abort at any stage of pregnancy, a woman would have total autonomy over her body. We do not have total autonomy over our bodies.
A foetus at 7 months' gestation is not a nothing, just because it's not yet a legal person. And I think it's been established multiple times on this thread that there is NO automatic "slippery slope" between considering that it might be wrong to kill it at 7 months, but not at 7 weeks.