I didn't tell my girlfriend when I was gonna come out, I mentioned to her a few times over a two week period that I was tired of hiding and I had a feeling one day I was gonna just tell my mom; and that's pretty much what happened. I got tired of that knot of anxiety every time I thought about my mother, so I picked up the phone and said "I need to talk to you about something and I'm really not sure where to start." She sighed a little and said "Just tell me." And I said "I'm gay." I'd imagined that it would have been a lot more difficult than that, and a lot more disastrous. She definitely isn't ok with it, but she took it very calmly and looks forward to "helping me make the right decision that will help get me into God's Kingdom." Seriously, she pretty much said that. She's happy I told her so she can help me. So, really I know the worst is yet to come.
After I spoke to my parents and my brother and a close cousin, I told girlfriend I'd come out the most important chunk of my family and it had all gone very well. She was a little blown away I think and said "Yours must be the easiest coming out ever."
I think she's right, and I think I owe a bit of that to my sister. Last November my sister-in-law said to me "Your dad seems to think you're gay. Apparently your sister called him and said something. Nobody wants to say anything to you, but I think you should know, and, are you?"
Being gay is not something I felt I had to or wanted to hide from the rest of my family, so my concern about it being known was the possibility it could get to my mom. I had to call my sister and ask what she'd said to my dad so I could nip that rumour in the bud, but she swore she hadn't told him anything. I am as certain that she did tell him as a person could possibly be without confirmation so I was hurt and pissed that she didn't tell me the truth. First off, noone in my family would have absolutely any reason to question my sexuality, and secondly my dad repeated to my brother - and my brother to me - verbatim what I'd said to her.
I'm still very wounded that she not only betrayed my confidence, but that she also lied to me when I asked her about it. However, despite my hurt and slight loss of faith in her it turns out she actually did me a favour and I am grateful. If she had not betrayed my confidence last year, coming out to my dad and brother this week would have been a lot more difficult than "It's true, I'm gay."
I suffered no stress whatsoever over coming out to my dad and siblings, I'd given it a couple passing thoughts over the years, but I had no angst left over from worrying about my mom to truly worry about them, so I just called them a bridge I'd cross after I dealt with my mom. My sister saved me any stress about them because when she outed me even though I didn't confirm it when I spoke to them both last year they made it clear that it wouldn't change anything between us. My brother said "if that's what you are I don't care, you're still my sister and I love you, and just be yourself." and my dad said "Baby, you're still my daughter, it doesn't change anything, and it doesn't change your last name."