I think the answer to this is, 'yes, what is wrong with you', but...
DH is massively keen to have children and is particularly keen to be a dad before he turns 40 next year. I am not really very keen on having children but have gone through it again and again and again with him, and my mum, and my friends I have concluded that I would regret not having children and as I am unlikely to suddenly start feeling broody I had better just get on with it while I am still relatively young (32). DH is perfectly happy to be a stay at home dad and is as supportive as it is possible to be. We have been trying (on and off) for two years and I miscarried at 11 weeks late last year. The MC was pretty protracted but we have now started trying again - no luck so far.
We have through a sequence of coincidences ended up booking a fairly expensive holiday to Vegas in May ('won' VIP trip for four at a charity auction) which includes various organised booze-related escapades which are paid for as part of the package - drinks at various places, entry and drinks at clubs etc. We somehow didn't really think about it at the time of arranging it (all non-refundable) but none of this is going to be particularly entertaining if I am pregnant - obviously there's the drinking thing and last time round I was tired all the time so the likelihood of my wanting to be out all night in clubs and casinos etc is not really huge. I was also very low the last time round (partly hormonal and partly oh-my-god-do-I-really-want-to-be-doing-this I think) and I am concerned about how I will manage this time round.
I would, frankly, rather suspend 'trying' for a couple of months and start again post-Vegas. But I think that this is probably really tw*tty and selfish of me as it really amounts to saying 'I would rather have a really nice holiday than a baby'. Although it is not really one or the other. I feel like I am being a bad trying-to-conceive-person but equally I am not hugely keen on having a 'last big holiday before we have a baby' holiday which involves everyone having a good time except me. DH and I had a conversation the other day which I thought ended with him saying 'look, I appreciate that if we keep trying and you are pregnant when we go to Vegas then you will probably be knackered and mental so if you want then we can put things on hold for a bit' but following a conversation yesterday that clearly wasn't what he meant at all and I have probably just heard what I wanted to hear.
As I say, I fully expect that people will think that I am being unreasonable, selfish and generally horrible but I just wanted to get some unbiased opinions...