Liver biopsy

Has anyone had liver hemangioma or focal norular lesions ... I do and it looks good like not cancer or anything but my doctor wants me to get a biopsy to see what one of them is Bc he said it could grow with pregnancy or it could be the one that doesn’t .... I’m very nervous to get a biopsy done has anyone had this done ? Also noted I have one child and I was fine .... he said no matter what he’s not going to remove it ... so I don’t know if I should even do the biopsy