<human>: My Mom started dating a a guy who was 20 years her junior. They were together for about three years and then things started getting rocky. They were on and off for about 6 months before they finally split. Just as they are breaking up my Mom announces she might be pregnant. Luckily the pregnancy test gave a false positive due to an unrelated medical condition. 

A few months after my Mom told me that she had actively been trying to get pregnant because she wanted another baby (She actually got pregnant about one year in to their relationship but she miscarried). She is a single parent with a child of 8. I was upset that she would do this as it seems insane to incur the expense and effort of raising a baby when time and money are already constrained. Her only retort to my concerns was '' all men should expect the possibility of have a baby if they sleep with a woman, protection is never 100%''.  She also told me she wanst using protection anyway so....

I really can't get over how upset and hurt i am. If she had, had that baby there is no way she could have afforded it. She constantly complains about her guilt for not spending enough time with my little sister. I just don't feel like i can trust her any more not to make stupid choices.

Am i being a n controlling daughter? I feel like i can't keep my nose out of it for the sake of my sister. She was damaged by the break up too, she called my Mom's ex dad. Fuck, im pretty mad about the whole things just typing it up now.  I suppose i feel like i should have been told. I know that sounds stupid but she was never going to stick with this guy so if there was a baby i would end up helping to look after it ( i live a short journey away from my Mom's house). I feel like she was about to inflict a baby on myself and little sister that neither of us wanted ( her ex was also vehemently against the whole thing, telling her to abort it).

Could you distill the essence of the text into 1-3 sentences?
<bot>: Mom tried to get pregnant with her toy boy and now i'm finding it difficult to trust her, am i being unfair?