10 weeks tomorrow

Hey ladies I'll be 10 weeks tomorrow. This is my 3rd pregnancy the other 2 ended in miscarriages, this is the furthest I have gotten with my pregnancy. I am excited but very nervous for I am high risk. I had an ultrasound at 8 weeks and I don't have another one until 12 weeks. I'm nervous as each day goes by wondering if my baby is ok. The symptoms I been having is severe heartburn and always peeing.