9 week ultrasound

I had an ultrasound today at 9 weeks. It's my 3rd pregnancy and I can't help but think something is wrong . I don't think the baby is growing but I saw a heartbeat.  She gave me pictures and to me the baby looks small. Anyone have any opinions ? My doctor also told me that I have a small subchorionic hematoma ...(a clot near the baby...) something just doesn't feel right .