Hi Ladies,
You were all very helpful in guiding me towards an answer on a previous post about an evening reception (which has since been dealt with and everyone is happy, no one's offended, so a win win all around), so I am here for help again. This time with a proper username, not my email scrawled across the page.
My question today is regarding my sister and her involvement, or I suppose lack thereof with regards to my wedding. We aren't as close as we used to be, but our relationship has been improving over the last couple years, and I don't want to hurt her feelings, even though I suppose I feel a bit slighted myself.
When my fiance and I got engaged last Christmas, I told S that we were getting married in England and she said it would need to be at least 2 years away if I wanted her to be able to afford to come, and even then it would be iffy. And that was kind of the end of that conversation. She has a young daughter so I understood the need to save up to come over for the wedding, I know it's a big thing to ask people to travel to another country for a wedding. Between mine and my fiance's schedule, we decided on what would end up being a 20 month engagement (we wanted to be married in the late summer), and hoped that the 4 months wouldn't break the bank for my sister.
Whenever I spoke about the wedding following that, she was quick to change the subject and we never got to have those fun conversations about the wedding plans, and she lives in another province from me so it made involving her tricky, but not impossible. My mum lives in the same province as my sister and has been very involved with planning. She's even making my thank you cards because she loves to stamp.

When the time came to choose my wedding party, I phoned my sister asking her to be one of my bridesmaids. She was very hurt and asked why I didn't ask her to be my MOH. I told her that with the wedding taking place in England, I will be relying on the help of my fiance's family to assist with planning, and his sister and I are very close. I told her that I had asked FSIL to be my MOH because S wasn't even sure if she would be able to come, and FSIL had been so very helpful with viewing venues, sourcing vendors and even wanting to throw a hen party for me (which is a lovely gesture).
The thing is, we're having a small ceremony and reception here in my village for Thanksgiving weekend for my family and our friends that aren't able to make it and I've asked S to stand up for me for that, and even then she is going to be 32 weeks pregnant so is not sure if she can make that one (understandably. I wouldn't want to travel if I were that pregnant), so I'm not sure how to handle this gracefully. I want her to be included, and I think she does as well, based on her reaction to what happened with the MOH thing. When she got engaged, she chose a close friend to be her MOH and asked me to be a BM which I was very excited for. So I just feel like something does not compute.
How do I sort this out tactfully?