Will I be eligible for maternity pay?

I would wait until your nhs scan and see what your dates are as they might be different and could make you eligible.
If you’re not you should be able to apply for maternity allowance instead which (minus the first 6 weeks at 90%) is exactly the same payments as smp

Thanks N! That's super helpful, will definitely wait for it before I inform work.

My company tops up the SMP with 90% pay for the first 6 months. Just a bummer that I might miss it.

But nonetheless, filters crossed! Hopefully it turns out positive ❤️

I'd double check their maternity policy and then once you have your dates, ask. Like they might be able to make an adjustment for you or meet you half way (pay 50% for the six months for example). I know not all companies will make individual allowances, but it's worth the double checking.

Wait, what calculations did you make? Cause from what I know, as long as you stay in the job for at least 6 months, you are eligible.

My organisation says I should have worked for this employer continuously for at least 26 weeks continuing into the ‘qualifying week’ - the 15th week before the expected week of childbirth

This adds upto 41 weeks roughly.