Mom Judy duty

So I got a letter for jury duty I sent them my excuse letter to be excused due to I’m a breast feeding mom and I’m a stay at home mom I won’t have a sitter for my children I didn’t say all that I just put I’m breast feeding my child even tho he just turned 1 this month will that mean they won’t excuse it ?? It is true I do still breast feed is there an age limit they won’t take that excuse for ?