Gender pressure from family

So, Im about 19 weeks along and Im having a boy. This will make it 6 boys and 1 girl on my husband's side for his parents between him and his 2 siblings We have told everyone except my family that we don't plan on knowing the gender because my other child is a boy and was the 3rd boy for them, we got so much crap from them about adding another boy then and my husband and I really didn't want to hear it again. Well his mom and sisters keep saying they feel like we're having a girl and they really want another girl in the family. I feel bad for lying but Idk. Im not sure how to deal with it, I want them to know it'll be a boy but I really can't stand their comments. How do you deal with gender pressure from relatives?