Just received an email from SCI tonight. Thank heavens there was no phone call. Our surro mummy K had some bleeding so an updated scan was undertaken. K is doing fine and her pregnancy is going well. However we got some more surprising news. K's last scan only revealed one gestational sac - now there are two gestational sacs. So because our other surro mummy "L" scans already showed 2 gestational sacs that means 2 + 2 might mean 4 babies???? OMG That is scarily fantastic. Cant wait until heartbeats are confirmed later this week.