have good rest, try not to move too much, take folic acid, I am not sure if your Dr prescribed dupbaston (dydrogesterone) to strengthen the pregnancy? hopefully, it helps, all the best!
Sometimes may be scan have error. or it's just too early. Just wait patiently and stay strong. do not stress out for this. the fetus will need more time probably
pray for you, hope miracel can overcome. pls put your faith to your little fetus say to get stronger a, mummy will protect to him 🙏
rest well & hope all is well 🙏💕