I went to the doctors yesterday, and based off my LMP... I should be 6 weeks.. but when the doctor checked.. he said my sack is measuring at 4.. does this mean I ovulated late? Or the fetus isn’t developing correctly. I did my ovulation based off of Glow and checking my fluids. My HCG levels are doubling I believe as they should. Just trying to get an idea of what’s happening. So confused! This is my second pregnancy.. first ended in a late term miscarriage. Any advice would be great! TIA