Should I

So I have a friend who have 4 babies she recentlyhad the 4th one and turns out she's pregnant again. She care fore the kids when there newborns and then leaves them with her mom. The baby she is carryin if from a different man and he dont believeits his so he left her. She currentlyis getting kicked out of her house for not paying rent and says she cant keep the baby cause her mom wont take her in either and asked me to care for it as my own. I have 3 childrenwith my husband. We both work and we both provide everything for our children the one thing we are concerned with is hetting attached and then her realizing she wants it back i love kids i adore them. But i dont know how to feel about this. She has always been a mess with her life having 4 kids and 3 different dads each one. And now being pregnant again and not having a stable living place. I know i could help her out. But she wont last long with advice we try to tell her not to drink while pregnant and all but she dont listen. She has never worked and lived off stealing from stores and reselling everything. I have not said anything cause of her kids i care about them like a aunt we have been friends since middle school. So i am coming for advice on this. Both pros and cons and if i should and how should it work? I really wanna help her but i dont want her to later on when it is older to want to claim them. What should i do?