Um no, 20 weeks I personally think is way too early to determine the size of bubz!

One of my friends who only has 5 weeks to go is FREAKING herself out because she thinks she's going to have a HUUUGE baby. The Dr said she can expect a baby between 7-9lb (ummm thats a HUUUUGE gap!!!) but she also thinks if she has a small baby it will be less painful .. I shouldnt laugh but she makes me laugh (we've known each other for almost 20 years so i CAN laugh at her!)

I was told to expect a 8 1/2 pounder and she ended up being 9.1 I had an awesome 4 hr labour with my DD!