When is it ever morally acceptable to force a woman to be pregnant when she does not wish to be?
When is it ever morally acceptable to veto a woman's decision to end her own pregnancy? By whose authority?
An embryo is not a human being. A fetus is not a human being. If you believe otherwise, fine, but you still do not have the right to use that belief to stop a woman who wishes to end her pregnancy.
It is her decision and, quite frankly, none of your fucking business.