Baby implanted low in uterus

Just had a 5 week ultrasound due to light spotting and hcg levels not rising properly. Found out the baby is low in the uterus. Doctor didn't seem too hopeful. Said I will probably miscarry. The reason is because there isn't enough room for it to grow. Does anyone have a similar story? I really need all the support I can get. I'm very upset and devastated. He said there is a remote chance it will be ok. I'm trying to be positive. Has anyone had similar situations? Please help 😔