anyone sick of their family members?!

My sister is driving me nuts!! Everyday she keeps telling me ooo your going to go into labor before you want to..1st off this is my second child and do you really not think I know I could?! 2nd we have a scheduled c-section for November 7th a week before we are due..so yes I totally understand I could still go into labor before then but you really don't have to remind me every single day multiple times a day..shut the heck up already! On top of that she acts as if I've never had a child before..we both have 1child already mine is older than hers and anytime I say something she has something to say back..or question me on every little thing..example-we were at a store today looking at stuff and I simply said oo I wanted to check to see if they had any nursing bras while I'm here her response-ooo no they don't have any here I checked when I was pregnant..that was 6 years ago..you don't think things have changed since then huh? Which they did have them by the way! My moms keeps telling me to just let it go that she is just feeling some type of way because she's my older sister and I'm having my 2nd child and married and she isn't..but it is really getting on my last nerve!