Would this be mental? re DP not living with me

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Pregnancy scare going on.
DP and I don't live together. We have a 2 year old. We were fairly young when we had him- we hadn't been together long, DP was still going through education, we've had a few relationship up and downs when DS was newborn and it just worked out for various reasons that DS and I lived in our home and DP stayed at home with parents. We have the intention to move in after he's finished his degree but (if I'm honest) the relationship is still a bit rocky and I'm not sure what we both want.
I'm having a pregnancy scare, been for bloods. I've been on/off contraception for a while trying to find something that works.
Would it be mental to have 2 children together but not even live together??? Has anyone heard of anything like this before??
Name changed.

Like others have said, the only time I've known it to happen is for benefit reasons.

I'm not sure I would personally, it doesn't sound like you even think your relationship will last.

I had this, an unplanned pregnancy with someone I was seeing but only for a few months. we tried to make it work but he lived an hour and a half away and he point blank refused to live together. Needless to say it didnt work as I grew very resentful at having to do all the hard work whilst he would go back to his for days/a week at a time.