I should think it will be fine in theory.
However, mum may reach that instinct to drive the baby out, which can cause fights, potentially mum may get some new hormones and want to mate again which again can cause fights, and potentially, if mum and baby do manage to stay together, when the babies hormones arrive, they may cause fights.
It can be done but it has a few risk points, including making sure that the babies are actually girls.