Sisters wedding.

So let me shorten this as much as possible. I was supposed to be married this past June but unfortunately covid ruined our wedding. Now my wedding is planned for next June. I wanted to start having kids (if we were able to get married this past June!) This past summer. Now my life is put on a small hold. My sister just got engaged and told me she will be having a wedding in another country (which she said I will be paying to attend .. I don't have the money I don't even go on vacations lol). I pre warned her that if I'm pregnant I will not be flying out of the country. I also don't have money to fly myself and my fiance out when we save for years to go on vacation. When we do go on vacation we go a very specific year because we both own businesses and can't just not go to work. If we don't go to work we don't make money lol. She is making a huge deal to my family. what would you do in this situation.