High point: My sister told me she's pregnant with her 3rd child! YAY!! Very happy for her & my BIL. 
Low point: Coming home to find that AF arrived. I was 6 days late and starting to think that I really might be pregnant even with all the BFNs (we're TTC).
Momma to three boys:
Henry - 4yo
Alex - 18mo
Jack - born 2/23/12 at 20w due to ruptured uterus (previa and accreta resulting in hysterectomy)
He only lived here on Earth for an hour, but he will live in our hearts forever.
m/c #1: sept '09, m/c #2: july '10
Re: Today was a rollercoaster of emotions...
Congrats to your sister! Hopefully, you will get a BFP soon so you can both be pregnant together.
Me and my SIL were and it was great. Now, our LO's are 8 weeks apart and will hopefully be great friends one day!