Boyfriend’s ex pregnant with his baby

I am a lady aged 38 never been married nor had children. I’ve been going out with my boyfriend who I met through a mutual friend and he lives overseas for six months. He is separated has 3 kid,2 are living with their mother and the other lives with his mother as her mother is deceased. He came to visit me 2 months ago and I fell for him, very gentle and caring and I felt I had met the one having come out of a long term relationship of 8 years and planned a future together. He was going to sort out his divorce so we can officiate our relationship and he just broke news to me that has just learnt a lady he was seeing before me is 5months pregnant but he says he doesn’t want anything to do with her as it was not a serious relationship but is willing to look after the child which he says there is a chance may not be his and will do a paternity test. I am confused and not sure how I am going to deal with 2 baby mamas and 4 kids and I would have loved to have a child of my own some day but God willing as time is not on my side. I love this man but I don’t know what to think. Thank you ladies any advise is greatly appreciated.