EBF and biting

Tonight I had to resort to giving my DS a bottle for the first time since he was born. He is 6months and has too bottom teeth. He BF all day fine and every day since now with minimal biting but tonight before bed everytime he went to latch he would bite down hard. 
  So I had to finally give in and pump and bottle feed him. While I am feeding him, I am crying. Yes it hormones but at the same time it's that he is growing up to fast. I will miss nursing him and I hope this isn't the end of nursing for us. But I just felt defeated. 
    Just had to share!!!