advice please

S
so one of my friends who is 18 was having sex with this guy for months, it was strictly just sex. the guy had already gotten a girl pregnant and the woman is planning on keeping the baby. my friend ended up pregnant as well and she has this condition where she can only have a baby if she is on medicine otherwise her body will miscarriage it. she told the guy but he said he didn't care and to get an abortion since he already got another girl pregnant, he doesn't want his family to be disappointed in him. 
she wants to keep the baby but she doesn't want it growing up without its father. what should she do?????