worried

my sisters best friend since middle school, is an amazing mother to two beautiful girls who are 3 and 1, and is expecting her first son in December. My sister called me this morning to tell me that R, had a seizure in her sleep last night and stopped breathing; thankfully, the seizure woke up her husband who called 911, as it stands she is in the hospital, 2 cm dialated, at this point baby boy would be about 6 weeks premature and most likely fine, but its still a very scary situation.