Seb is 7 months old. He's had his 2 bottom teeth since 4 months. His top gums have been swollen for about a week now like he will be cutting them soon so I check them every day or two. Today I noticed he has a sort of bloody flap of skin on one part of his top gums in the front. I felt it, expecting to feel a tooth and found nothing! Still soft...dh says its probably his bottom tooth cutting his top gums but I'm a little worried. Is this OK? My daughter never got this.