I don't know how old your baby is, but if they're under 6 weeks old, they need to be on the boobie a lot more than 3 times a day if you want to breastfeed.
Mine is 11 weeks old and she still eats every 3 hours that's 8 times a day. Prior to six weeks she was feeding every hour to every 2 hours. (That's at least 12 times a day)