MIL thinks sono pic is off?

I am 21/22 weeks and had a sonogram yesterday. I saw my doctor right after and he said everything is normal. 
However, my MIL says this doesn't look right and something is wrong. She thinks the doctor just doesn't want me to worry. Usually I just blow this off, but I'm in no hormonal state to deal with this rationally!
So... Please take a look. Is there something off? He's a roly little thing and this was the best side profile the sono tech could get.