Has anyone else been afraid of having a kid with their so because of a mean mother law?

She’s not horrible but she just so freaking dramatic all the time and always says that me and her son are not meant for each other. She goes through these phases of I’m either her best friend or her worst enemy and I’m afraid that she would try to dictate everything in our child’s life.

Do I just say fuck it and continue ttc and deal with possible issues when they arrive or do I wait a couple years and see if she calms down ?

She doesn’t know we are ttc and every time I have brought up the possibility of having kids she says we’re to young and don’t need kids.