Everyone does weird and odd things for the person they love.
Me & the ex moved insanely fast, so fast that I was pregnant within 3 months! I didn't do it to trap him either, like you, he painted this amazing perfect life for us & honestly I couldn't wait to spend the rest of my life with him....he thought he had fertility issues too (no idea why, he got a girl pregnant when he was 24, although she aborted). I wasn't on the pill or anything like that however from day one I made it very clear to him so he understood we absolutely had to use condoms.....we didn't
however, he was more than aware of the consequences but was over the moon when I told him....we started talking about marriage &! More kids!
I was in this perfect little bubble, because of the "nice" guy, I was willing to ride through & put up with the abuse mentally just so I had my perfect happy family.
My bf (eventually husband) going to work, coming home, looking after our son whilst I cooked dinner....bath and put him to bed & then we sit on the sofa together for the evening
Oh how bloody deluded I was!
That wasn't ever going to happen, not in a million years!
The reality was this....he was insecure, thought I was going to cheat on him, solely because he'd done it to his ex....he told me I was a horrible person, that I was crazy, he grabbed me, pushed me & screamed in my face, he also hit me, told me what a bad mother id be, how he hated me, that he shouldn't be expected to pay all of the rent and bills just because I couldn't work because I would be at home with the baby.
Right now, I am looking back and viewing our entire relationship with rose tinted glasses, when I know, it was shit & no matter how much I sugar coat it, it's still shit!
I just wish I left him & not him me.