Hi all, new here so please be gentle 
I don't actually have kids (yet) but my long term partner and I will be TTC shortly when I come off the implant. It may be a bit premature to query this, but just wondering what you guys have to say regarding traditional thinking in-laws.
To elaborate, my DP and I have no interest in getting married but would love a family. We believe we'd rather spend the money we have on raising our future kids, than blowing the budget on a big wedding. (That said, I'm not anti-marriage at all.) However, whilst my own parents are pretty open minded about modern family set ups, my DP's Dad and Step-Mum are very adamant that marriage should always come before children. They have even said as much publicly on family occasions (especially Christenings*), which is really awkward as we haven't told anyone we're going to try for a baby, and after hearing their views, I'd frankly be quite scared to tell them if we did get pregnant for fear of disapproval. (His Dad was already married with 2 kids by the time he was DP's age - 27, and despite being divorced once, still has old school views!)
Just wondering how any of you would handle this situation? I suppose I'm asking now before I'm even pregnant so I can prepare myself for their reaction! I know I shouldn't care what other people think and just do what we want, but I don't want to risk alienating his family, especially as his Step-Mum and I haven't the best relationship already. She's not a horrible person, but we're very different and she has (to put it politely) a rather brash manner.
Thanks in advance for any advice! x
*Don't even get me started on Christenings! DP and I are not at all religious, but of course a baptism would be 'expected' (DP's Dad is from a large Catholic family.) Nightmare. 