At 20 weeks of pregnancy, the average fetal weight is typically around 10.5 ounces (or about 300 grams). However, it's important to remember that fetal weights can vary quite a bit, and a little above or below this number can still be normal.
When I was around 20 weeks, my healthcare provider used ultrasound measurements to estimate the baby's weight. They explained that these measurements give a rough estimate but can have a margin of error. My baby was slightly above average, and my doctor reassured me that this was quite common and not usually a cause for concern unless there were other factors at play.
Healthcare providers generally look for consistent growth along a curve rather than focusing solely on one measurement. As long as your baby is growing steadily and there are no other indicators of concern, most doctors won't worry too much about slight deviations from the average weight.
If you’re feeling uncertain, it might be worth discussing the specifics with your doctor during your next appointment. They can provide personalized insights based on your pregnancy's particularities. Do you have any specific concerns about what you've been told so far? It might help to discuss those in more detail.