Don't know what to do

My boyfriend has been M.I.A for the past 2 days.. Before Nadia was born I seen his messages and he was talking on his facebook to a chick named Brandi and at first I didn't care then I looked down more at the newer messages and it said stuff about me and him not being together anymore & blah blah blah. I've been texting him & calling him for the past how many days and even got ahold of his mom and sister. I don't know what to do.. Plus he didn't come to the hospital at all. Ugh