I'll try to keep the backstory as brief as possible. SIL lives up north (about a 4-5 hour drive from us) and we've driven there a number of times to visit her and her DCs for a long weekend, and we take MIL and DH's aunt with us as they live close to us. It normally costs in the region of £400 for us as a couple as we have to rent a cottage for 3/4 nights, plus fuel and eating out.
Our DD is due to be born in a couple of months, and MIL is already talking about taking a trip to see SIL before the end of the year. My issue with this is that I'll only be on SMP so money will be tight, and I don't really want to spend almost a months worth of pay on a weekend that if I'm being honest I don't particularly enjoy. I usually put up with it because DH likes to spend time with his nieces and nephews, but I normally spend the whole time sitting there playing on my phone (it's a really remote area, there's nothing to do, and generally it's just all the women sitting in the living room drinking tea and gossiping about other family members that I don't even know. DH tries his best to make it more enjoyable for me by making sure we have a bit of time on our own, but there's literally nothing around within a 45 minute drive so it's a struggle to find something interesting to do). Also, this time I'll have a small baby to consider and I just think it'll be really hectic and not relaxing in the slightest for me. And as there will be 5 of us, we'll need to hire a bigger car which will end up costing even more. I suppose my issue is that I begrudge spending so much money on a weekend that I don't enjoy when we haven't got the money, and I don't really like the idea of taking a 2-3 month old away as I'll still be adjusting to being a mum.
AIBU to say no to this until DD is a bit older? And also stop DH going without me (not that I really think he would) due to the financial situation? I just think if we're going to spend £400+ on a weekend away I'd rather do something just me, DH and DD as opportunities to have holidays/breaks together will be limited for us anyway. MIL is bound to kick off though, and DH can be a bit soft when it comes to MILs demands so I tend not to disagree with his decisions when it comes to her as I don't like him to be caught in the middle of us.
Also worth mentioning that MIL and her sister are elderly (late 70's/early 80's) and are very negative people, always moaning. So after spending 4 days with them I feel absolutely drained by their constant bitching!