Hear, Hear! I raised a child on my own with Borderline and scizoeffective and my son came on the horrendous ride with me. Hospital admissions, medication and god knows what. I did not have any family really but my dad did look after my son when I was hospitalised. He is healthy, happy and a good student. He is 13 now and I wouldn't have changed it for the world. I keep a close eye on him though, to make sure that he is coping at school and with friends.
He was my saviour, my anchor in a terrible storm and he has kept me alive more times than I can remember.
So go for it. Your baby needs you and you need her. Go on the ride together. Strangely enough it is easier and you live with no regrets. Good Luck!