Any breastfeeding mums to share their experience here?

You mean whether your breastmilk is sufficient enough for your baby on their first day? Actually baby's tummy is very small, the size of a marble. ;) They don't need a lot to fill full. But because it is small, and that breastmilk is easily digestible, baby will nurse frequently. At the same time, baby is also regulating your body as to how much milk he/she needs. While baby may latch for milk, they may also latch to seek comfort. And they know mommy is the best person to go to!