Oh sweetie
I don't even know what to tell you!
I am just as SCARED as you are - so you are not alone
My Tatum is 5 months also (well, a few days shy) and is still under 2 lbs and her breeder really wanted me to try and have her spayed by 6 months of age. BUT - I did talk to her and she said that because of her size, if I want to wait a little while longer, that it is fine with her. My best friend came over today and saw her for the first time and just FLIPPED at how small she was. Really, she was very, very surprised. I have sent her pictures...but to see her size in person really freaked her out! She couldn't get over it - and when she picked her up she said she felt like she was holding a newborn kitten
I told her DON'T SAY THOSE THINGS! She WILL grow! I just know it! She has to
Because her size just totally freaks me out. I really want her to get to 3 and 1/2 - 3 being the SMALLEST. I really, really hope she does
Not to mention my best friend just got her second Yorkie (a male) and it is only 4 months old (a month YOUNGER than my Tatum) and he is my Stedman's size - and Stedman is 14 months old and weighs 4 lbs! So that's probably another reason why she freaked out so much lol.
Anyway so enough rambling but I am just as scared as you are girl. I know that I am probably going to have to pop a nerve pill when Tatum goes in because I am going to be so nervous that I'll be shaking!