Sister and fiance recently got engaged. There were initial talks of getting married, across country where fiances family is from. Cost - flight, 2 nights hotel, one day off work. Now, they are leaning towards destination wedding in mexico. My husband and I would likely be in the wedding party. She asked us if we would go. I wanted to be as open and honest as I could. We just had a baby a few months ago, and I'm off work till the fall. When I do go back, I will be going from full time to part time. My husband and i shared with her there is a high likelihood that we will not be able to go due to finances. I will only have a few months back at work to save, and would have to take a full week unpaid. We want to go and will try to save but we just might not be able to afford it. I'm being told that we are family and should just make it work, and just throw the cost of the wedding and trip on a credit card and pay it later. And that debt will just go away, but a wedding only happens once. I'm really frustrated and I'm not willing to put our family in debt to go to a wedding even if it is family. I have tried being very polite and explaining our finances but it's not getting through. I guess I'm just looking for thoughts or advice, am I in the wrong here?