If your relationship balance and trust is based on whether or not your partner can secretly make babies with you without your consent, that is something to be addressed (in a human way, not by using ultrasound on your testicles).
Relationships are hard and often imperfect. People often lie and act irrationally. I've seen justifications like "he won't leave me if I have a baby with him".
As men, this is absolutely something that we should worry about.
They are hard and can be imperfect. More importantly, you cannot have a good relationship founded on this kind of thinking:
> People often lie and act irrationally.
If that is your fundamental truth in interacting with your partner(s), your relationships will never really get anywhere. It is just not good advice to tell people to do so, unless you want them to never create meaningful connections with their partners.
My experiences with relationships are overwhelmingly positive. However, there's always a non-zero risk that such a maneuver can happen. I've seen it happen, many times. Even in otherwise happy couples. Are you willing to bet your future on it?
Betting your future on your partner is the whole point of having a shared household. You and I must have a significantly divergent of what a positive relationship looks like.
> You and I must have a significantly divergent of what a positive relationship looks like.
I guess. I've never had reason not to be open about these issues and it's never disrupted trust in the relationship. I've discussed these ideas with every partner I've ever had. They weren't offended, they understood. Many even had their own stories of unplanned pregnancies to share.
My girlfriend lets me give her the trimestral birth control injections.
