I wonder whether the "other options to prevent pregnancy" he is proposing include "no more PIV sex until after menopause," which would also keep his options open if his wife dies or they break up.

Because he says they are "both outraged" and that he is "supportive" of the "complex feelings" of a woman who is sure she doesn't want to be pregnant again, but he sounds like he is prioritizing "what if you die and I want more children?" over the risks of an unwanted pregnancy. Yes I'm feeling cynical right now, but "nonstop morning sickness" plus "constantly uncomfortable" for several months might be him downplaying serious risks to her health. If I got to this that quickly, LW's wife may be sitting there in her therapy session saying "my husband wants me to risk my life so he can have more children if I die."