So tired of being pressured

Before I had any children I wasn’t sure if I wanted any at all. I felt pressured constantly to have children because my mother couldn’t see her other grandchildren, somehow that was my issue to fix by having a baby. I got pregnant, not because I was pressured but because I wanted to. Fast forward to now I’m still being pressured, but now I’m being pressured to give a girl…as if that’s something I can control. Because my mothers only granddaughter is a nightmare it’s again on me to have another girl. I have two boys and my third will be another boy. I’m done having kids after this one. I mentioned to my mother at this will be last cold and she says “so that’s it? You’re not trying again for a girl?”. Im not going to keep having kids in hopes I’ll have a girl. I’m the one who has to carry the pregnancy and provide for a child. I’m not going to risk my health or mental well-being because my mother just needs another girl. This pregnancy has been difficult on me and I don’t want another. It’s not my responsibility to provide a girl to someone.