6 week Symtpoms

Hi ladies! I had a missed miscarriage a few years ago prior to getting married. My husband and I started trying again this fall and finally got my BFP early this month. I am about 6 weeks but I am so paranoid about miscarrying again.
I feel like my symtpoms come and go. My boobs don't really hurt anymore, I don't have as bad of bloating but I do have mild fatigue and every now and then feel queasy. Is this normal? Should I have full blown morning sickness or feel more pregnant by now?
I have an ultrasound next week but I'm going nuts while we wait!