Congratulations! Hope your pregnancy is smooth and the dreaded morning sickness stays at bay.
You’re right to think about it and get yourself financially in the best possible position rather than sticking your head in the sand.
I would say switch any contracts you have to cheaper ones (there are always cheaper ones). We were paying £35 for phone line and internet and I wangled us a £14 deal for the same thing. Same with gas & electric too! Definitely look into your car insurance too.
When it comes to buying baby stuff, start now to Spread it out and go second hand where you can. See if NCT do any ‘nearly new sales’ as well as utilising eBay and Facebook marketplace. We got a cotbed for £20, baby bath for free and piles of bargain clothes. It really it amazing what you can get for very little for the baby. Only things we bought new were car seat and mattresses.
Another tip is use cash back sites for anything you possibly can. Food shop online? Check what cashback you can get. I use both Quidco and top cashback - whichever offers the best % for the site I’m using - and I’ve earnt over £400 back in the 5/6 years I’ve used it.
I’ve used it for car insurance cashback, uswitch cashback etc.
Sign up for mothercare and mamas and papas parents to be events, you often get money off vouchers etc.
Keep doing what you’re doing: save, save, save. Register the baby as soon as you can as once you’ve done that you can apply for child benefits (an extra £80 a month).
Good luck!!