Hcg levels continue to double mine are more than doubling ges sac measuring 5w5d however i'm 5w2d. hcg 4967 no yolk sac. ovulated 18aug?

Wide variation: There is wide variation in normal HCG levels. See this site for more information and let your doctor interpret the HCG levels. http://americanpregnancy.org/duringpregnancy/hcglevels.html.

Perfect: Your #'s are perfect. For an ovulation of 8/18, and therefore a conception date shortly thereafter, you're measurements are right on, and your HCG is correlating perfectly with these numbers. A yolk sac will likely form in next few days. You should heart a heart beat in about 7 more days. No worries at all!