I do not see how fear of pregnancy can make a woman call her husband "a disgusting pervert". Just does not compute. No connection. I can see how fear of pregnancy can make a woman:

- use high effectiveness birth control, or, better, a combination of such

- avoid PIV altogether (penis-in-vagina - an acronym I've just learned to use to save on the number of letter in the word combination "vaginal sex"), or,

- OR... OR... gasp (as this is such an unusually creative and non-standard approach to problem solving that one needs to have IQ in the 99th percentile for that)... tell her husband that she fears pregnancy.