PlayStation I had two children with another player in multiplayer but each one was born in a different house

[Hanaeryu]

The first child was born in the principal farmer (husband) house so everything went well. The other player's (wife) house was remodeled to remove the crib so we thought that the second child would be only able to be born in the principal house (husband's) but it appeared in the child room without any crib just floating in the room where it should be. Now we are worried that we might not be able get the full house achievement because we had already two children together, or maybe we could have 4 children, two in each house?

Thank you for your help.