HCG rising but not doubling.

Toni
Friday I was at 1735 and Monday was 2234.  Only about a 30% increase in 72 hours. I go in for an ultrasound next Monday. I'll be with my mom and In-laws for five days but we've decided not to tell them. We had grandma and grandpa coffee mugs wrapped up as Christmas gifts. I know everything could be fine, but I feel crushed.