Dear L.,
I only have 2 kids and they're 10 years apart. My daughter was SO excited about having a baby! She'd always wanted me to get pregnant and I had to explain to her that mommy couldn't have any more babies.
Well, surprise!
I certainly didn't plan to have my children so far apart, but I honestly would not change a thing. My daughter adored her baby brother and was so proud of him. She thought he was HER baby! There was never any jealousy or anything. At that age difference, they're on such different levels as far as attention, etc.
My daughter is out on her own, but she takes my son shopping, he goes and stays with her, they talk on the phone almost every day.
I won't lie, there were plenty of times as he got older I'd hear, "Mom! He's getting into my stuff!" But, that happens with all siblings.
Honestly, after my son was born, with the exception of my horrible husband, it really was the happiest time of my life. My daughter and I used to dance around the house and sing, "There's a baby in the house...there's a baby in the house..."
We were so happy, we really were.
And after my divorce, we had even more fun, the three of us.
It was hard on my son when my daughter moved out. But like I said, she really takes time to spend with him.
One of my neighbor kids was in high school when he got his surprise sister. He loves her like crazy and carries her on his shoulders, takes her on walks, plays with her.
It might be an adjustment having a new baby after a long while, but in my case everything just felt so natural and my son was such a happy baby. My daughter was tickled and as I said....I wouldn't have changed a thing.
I don't think your kids would be too far apart. It's kind of funny, but when my son turned 10, I had the strangest feeling it was time to have another baby. I couldn't because I'd had a hysterectomy, but I would have if I could have.
My sister and I were 3 years apart and we fought like cats and dogs so you just never can predict how "close" siblings will be regardless of how far apart they are in age.
I wish you the very best!