D*mn! I thought I'd cracked it then!
Seriously, every time a med person speaks to you, make them say it in full - "1 unit to 15grams of carbohydrate" or "1 unit to 2 carbohydrate portions". It makes a huge difference and I think sometimes people make assumptions and just say things without being clear.
My top tip for post-baby carb/insulin is to keep it very simple. I have the same breakfast every day and pretty much the same lunch. That's two meals I know will work ok. I also test lots and adjust as necessary - that is, either correct or eat a bite extra if going lower than normal.
Thank you - and congratulations on your baby too
Diabetes and a baby is much harder than people realise unless they've done it!