We used a shot glass instead of a bottle just to top up when I felt she didn't have enough. (We had a poor latch due to tongue tie)
I had lost a bit more blood than this before and then during delivery. I also had to feed with top ups and this resulted in combi feeding for all of our 6mth breastfeeding journey. There's certainly nothing wrong with it, but if you are wanting to exclusively breastfeed then giving formula top ups will probably mean you're likely to have to continue like that. As for nipple confusion...I had to use nipple shields for a while and wean off using them to get baby used to being without it. It was tough going, but def do-able! Congratulations on your new arrival, well done for all your hard work so far and best of luck going forward mama x
I have done this and we now ebf! Combo-fed for 4-5 weeks ish then slowly reduced the amount of formula by 10-20ml a day until we could ebf :)
I have done this, and I've breastfed my kids for 2 years each currently on my 5th consecutive year b feeding my 3rd child, he had jaundice so I had to give him formula I still top up sometimes when I want to but past 3 days he's been exclusively bf. I just monitor how much formula he has, I give a limited amount and always make sure he bf first.
I don't have experience but I've read feed baby with a syringe instead of a nipple. Good luck!