Hcg levels


So here's what is going on, i am 6 weeks and 6 days right now, I went to the dr Tuesday for my initial appointment the the nurse practitioner and she obviously ordered blood tests, she also ordered another blood test for today to track my hcg levels due to a mc last year. She called me yesterday saying I didn't need my levels rechecked because they were 61,606 and she felt that was great. She also wants me to come in Monday for an ultra sound because she thinks I might be father along than I think. I tempted and took ovulation tests and kept track of every time we BD so I feel like I couldn't be any further than I'm thinking. Has anyone experienced this ? Should I be worried about this or excited? This whole pregnancy I've stopped myself from getting excited because of my mc last year so I just don't know what to think right now. HELP