Breastfeeding or formula?

I’m currently pregnant with baby #2 and everyone is asking again (🙄) if I’m breastfeeding. While I’ve been considering it, my fiancé has left it entirely up to me to decide and I’m on the fence. I didn’t breastfeed my first child (though my milk came in literally about 8 hours after birth so it was definitely an option) and I didn’t pump ever; she was solely formula from day one so I know nothing about how it really is to breastfeed or do mixed feedings. I’m a SAHM with a toddler and I don’t really go anywhere during the day unless we need something from the store. That being said, what do you think? Did you breastfeed feed one child and not the other? Both? Regrets or things to look out for? Things that made feedings or pumping hard to get through?