I actually would agree with the statement that unplanned pregnancies are overwhelmingly or almost entirely the fault of men. But I don't think it's 100% the fault of men 100% of the time.
"Unplanned" by whom? Do pregnancies the woman wants but the man doesn't not count?
No sex, no pregnancy. This is not "overwhelmingly" on men. It's 50% on men.
I take it your wife's cycles are regular and she has no medical issues such as hypothyroidism? There are many women whose cycles are irregular or they have thyroid issues (the two often go together) or other medical things going on that mean they can't know for sure just when it's safe to risk sex and not get pregnant.
From what I've heard, doctors have a word for couples that mostly rely on regular cycles to prevent pregnancies while still having sex:
Parents.
Really? The fact that a man is capable of causing thousands of unplanned pregnancies in a year
I'm curious about the logistics of this. Exactly how might a man cause THOUSANDS of unplanned pregnancies in a year? Even if he slept with two unique women every single day without taking a break (an exhausting horror show, at best) and every single one of them got pregnant in one go, he still wouldn't be close to 1000 lol.
If we assume other kinds of actions instead, you'd have to stretch pretty hard to still call these "unplanned".
Ignoring the exaggeration, the fact of the matter is that unless the man is a rapist he can cause exactly 0 "unplanned pregnancies" w/o consent.
Just so there is no confusion: the position I'm defending is, again, that men are mostly responsible for this issue, not entirely.
Even "mostly" isn't reasonable. If people don't have sex they don't get unplanned pregnancy. That's an undeniable, gender-neutral statement and an enormous elephant against the argument that men are somehow more responsible for the outcome than women.
Sex is good, healthy, and if done properly has no discernible negative consequences. I don't see the virtues in abstinence.
"Virtues" depends on what you mean. People make their own moral interpretations, but abstinence carries an absolute guard against both STI and pregnancy, a number of non-trivial potential legal consequences, and at least in principle can help avoid getting attached to someone with poor compatibility too quickly to evaluate that.
But pregnancy is just one of the reasons I think men in general should be reflecting more and having bad (bad meaning both unethical and unpleasurable) sex less.
Just men should reflect more? Not women, who are also willingly engaging in what you describe as "unethical and unpleasurable sex"? You can't realistically make a case they're not either, because if they weren't there wouldn't be unplanned pregnancy. Men and women both have to screw up to get that outcome, not just one or the other (unless one wants it and the other doesn't - there are serious ethical issues in that instance).
I think the many millions of women that stepped up and married some mindless buffoon that accidentally got them pregnant just so their kid would have a dad are the real heroes.
By that logic, as mindless buffoons themselves it's a good match. Certainly good on both of them for properly maintaining a family to raise the kid(s) though. Children of two parent households have an extreme advantage over single parent households on average.