I just want to send a massive Happy Birthday to my baby girls, I can't believe that they will be 7!!
I feel so blessed to have them, and couldn't imagine my life without them.
Birthdays make me reflect back so much .... apart from the initial shock of my DH and I finding out that we were having twins, my favorite reaction to anyone that we have ever told is my FIL. He is quite a reserved guy, doesn't wear his heart on his sleeve much and is relatively quiet (unless he is fired up about something
). We told him and my MIL that I was pregnant, he just sat there and put his head in his hands for a good couple of minutes, then he looked up at me with tears in his eyes, as if I had given him Christmas every day of the year. When I actually had the girls, he came to see me when I was recovering from my c-section and he couldn't even speak. 
To all of those of you that have twin pregnancies, it is such a cliche, but enjoy every minute of all of it because it goes so so fast.... and to those of you struggling with toddlers don't worry because it goes so so fast!!
Cheers
But I agree, it does go fast, the past 17 months have gone so quick!