Should I start mourning?

I have super abnormal periods so i'm unsure when I ovulated. I believe it was around June 17th. July 3rd HCG was 200 July 5th HCG was 503 July 9th HCG was 1473 The first two tests I was happy with but i'm not feeling happy with the third. The doubling time is ~61 hours or 2.5 days. Do these levels seem high enough for the time period? And do you think it's rising enough? I have a scan tomorrow, I'm just wondering if I should prepare for the worst. Thank you.