Hey all I know there is a chart which shows what your HCG should fall between by week and there is a huge difference between the lowest number and the highest. Mine is in the middle, but My question is that I have read that after the 6 week mark your hcg generally starts to double every 3 days rather than 2. Does anyone else know this to be true? My HCG was at 3050 at 4 weeks 5 days. I had them done at 6 weeks 5 days and the numbers increased alot but didn’t double every two days they were 36,800. If they had double.d every 48 hours I should be over 90,000...