Yes, they are fundamentally different kinds of acts. Sex during times of the woman's infertility is still sex in the natural way. The infertility is accidental to the act. When you wear a condom, you are changing the nature of the act. You are saying you want the physical stimulation of vaginal penetration, but want to keep all semen out of there at all cost.
Ask why, if sex during times of intertility is sinful, why did God institute a menstrual cycle with extended periods of infertility when he could have made women always fertile? If it were true that sex during times of infertility were sinful, then all married couples would be bound to rigorously practice NFP so as to only have sex during times of probable fertility. Women would also have to stop having sex entirely once they hit their forties or so, because they become infertile for the rest of their lives. The idea that NFP is intrinsically sinful reduces into so many absurdities if you follow any of the resulting conclusions.
Grayson Brown
That is the implication, if you think that proper sex with no artificial products that interferes with conception such as condoms and medications that does not result in a baby being created is contraception then that means that any proper sex that does not result in conception is contraception, because the end result is a baby not being born. That's why it's illogical to think like that. Besides, NFP is not some guarantee (like actual contraception is) and if a baby does get created then it stays.
Thomas Young
This, so winnie the pooh this
Christopher Sanders
all the good ones
Matthew Wood
What about having sex with a pregnant wife? She can't get pregnant by that act as well.
Nathan Phillips
It satisfies the the familial bond that sex fulfills and helps keep the couple bound; this is even reflected scientifically, certain bonding mechanisms in the brain kick off during sex.
This is why woman whom go through life with only 1 sex partner have a 95% marriage success rate.
Mason Walker
Absolutely - the whole reasoning behind it is being able to have sex without having children. To put it another way its akin to a man who wants to die deliberately volunteering for a dangerous mission or deciding to drive without a seatbelt. "Oh im not committing the sin of murder Im just taking actions to vastly increase the chance of myself dying God is cool with that because its not like Im shooting myself"
Cooper Russell
I agree. I am not against a man having sex with his pregnant wife but I am certainly against contraception. Are such feelings justified or prelest? What is the moral difference between the two?
Caleb Brown
There is no Church teaching against pregnant sex because it satisfies one of the entire points of sex:
marital unity
personally, I think the entire concept of "prelest" is an orthodox fan-fiction
Adam Sanders
Better put would be if they purposefully don't have intercourse on certain days of the month, they're sinning.