Pull out method when not in a committed relationship

[thisiswhatyoucamefor]

My sister (39) has been dating a man (33) for 6 months. It's early days and they are 'seeing how it goes'. Yesterday she told me they use the pull out method. My sister is not on any contraception (and has made him aware that abortion is a no go).

Although he is not pauper (he is a very young professor), my sister is well off (£2m assets) and something just seems fishy to me but my sister won't hear any of it.

AIBU or am I correct in that this guy is trying to impregnate her $?

Define "successfully". It has a very high failure rate.

YANBU to think it is wrong.

Probably must be the only professor to follow the example of the Prime Minister.

Genius 😂

As the old joke goes
"What do you call people who rely on the withdrawal method for contraception"

• Parents!