I had a pandemic baby and it’s appalling but you can’t rely on breastfeeding support in person any more.
What I will say (my sister is a lactation consultant, amazingly for me...) is that’s it’s VERY unusual for your milk not to be there at all but VERY usual for new mums to panic, especially with no support, and feel they need to top up.
This then reduces the time baby spends at your breast, which reduces your milk supply, which is what you were trying to avoid.
Do plenty of research beforehand and know what you’re looking for. It doesn’t matter to know “how much” the baby takes, as long as they have plenty of wet and dirty nappies.
Because I’m a geek and was fascinated by it, mainly, I expressed colostrum in the last days of pregnancy and had about 10 1ml syringes in the freezer. When my baby was born he did have low blood sugar and was so sleepy he struggled to feed (although he was latched on by a nurse as I was wheeled from theatre still on the trolley, truly one of the most mind blowing moments ever).
Because I had the frozen colostrum, knew he only needed tiny amounts and had faith in myself (well, in my sister at the end of a FaceTime tbh) I gave him some syringed colostrum and squeezed my nips into a teaspoon (honest) and it perked him up enough to wake up more and latch on better that first day or two.
Breastfeeding isn’t necessarily easy at first, but it does get better and better and will make your life so much easier down the line.
If you can plan for hiccups and KNOW that topping up with formula can often cause lower supply which is counterproductive, you can be ready for it.