Fetal buds 2cm in 8 weeks of pregnancy is normal. You can observe the size of the fetal buds through ultrasound at 8 weeks of pregnancy to keep an eye on and understand the development of the fetus. Generally, at 8 weeks of pregnancy, the size of fetal buds is around 1.5cm. However, due to individual differences, the length of the fetal buds is generally regarded as normal as long as there is no big difference, so 2cm of fetal buds at 8 weeks of pregnancy is normal. If there is any discomfort, such as nausea, vomiting, vaginal bleeding, abdominal pain, etc., or the size and length of fetal sacs and buds do not match, or the buds do not continue to grow, it is necessary to go to the hospital in time for examination and consultation, and close monitoring, so as to achieve early detection of the disease and early treatment.