Help! Nursing strike 😥

An

My baby girl is almost 14 weeks old and suddenly been on a nursing strike she starts screaming when i try to feeding a couple days ago my supply has gone down (i use to have an oversupply) she's been ebf since birth the last two days i had supplement. I noticed she had some signs of teeth lately lots of drooping and wants to have something on her mouth and wont even take a pacifier anymore only for naps. Im just nervous this is the end of breastfeeding and im not ready i breastfed my first until he was 1. 😔