need advice

Victoria
So about three days ago my baby started turning away from my boob. I exclusively breastfeed and am becoming frustrated. He'll either completely turn away or eat for two to five minutes and push away. He cries after this and makes hunger cur such as rooting but if I try to give him the boob back he cries more. I broke down yesterday and pumped him two bottles and he ate those right away. I feel terrible I don't want to give up breastfeeding him after only a month but I don't want him hungry either. Advice would be helpful please.