What happens when you're 37, almost infertile, in a new relationship and you go and get pregnant by accident? Find out in Sarah's weekly column: Up the Duff Without a Paddle.
I had an experience this week which I will remember for the rest of my life - I went to look at baby clothes with my dad.
As the supposedly least fertile woman in Britain, I had never imagined I would get to do something so lovely and so special as to choose baby clothes for my newborn with my own dad.
But there I was, amongst the sleepsuits, booties and scratch mitts with my seventy-something DIY and rugby nut of a dad.
I've decided not to buy baby things until I actually believe I'm having a baby, and until I'm more assured that the baby is ok, which I reckon will be after the second scan and our holiday in August, so September time-ish.
So, we left empty-handed but we had a mighty fine time cooing over cute stuff together. While I head for the simple understated pieces, dad seemed to like the more intricate outfits, it all being a far cry from what was available when his kids were born, or my elder sisters' four kids - they're now aged between 15 and 19 years. "Look at this! It's amazing," was his typical response to the average dungaree set with appliqued trucks and matching jazzy t-shirt.
I'm so happy that I'm bringing a new baby into the family at this point in time, when my sisters' children are all grown-up and my young-in-spirit parents are heading towards their properly elderly years. I feel like I'm bringing in a new, invigorating and fresh chapter for everybody.
I have felt very left out as the only daughter without kids for the last 10 years at least, and have worried, as my nieces and nephews got older, that my child would be left without family playmates, and the novelty of kids would have worn off for all. But the opposite seems to be true so far.
There's a big enough gap between the grandchildren for this baby to be really very special and to generate lots of excitement. My mum has even got her knitting needles out, and my sisters are keen to dust off equipment that's been in lofts and cellars for years.
My other half is the eldest of his siblings and the first to have children. His parents are besides themselves with excitement. I've spotted an original Silver Cross pram the size of a Ford Fiesta in their loft and I'm just waiting for it to be offered up. Now that's going to test my diplomacy skills!
Read more of Sarah's Thursday columns here.