Any techniques to see how much baby has dropped ...? My mom's friend put her hand infront of my…

Any techniques to see how much baby has dropped ...? My mom's friend put her hand infront of my boobs and said if u could fit your whole hand and have a whole belly under it means baby has dropped but i still had one finger ,

Picture : the finger the red arrow is pointing at is still on like the curve of my stomach rather than being straight like the others which is what she meant by i still needed one more finger