Quick question about teething?

i have 2 children, my daughter who is 4 and my son who i 3 months old. currently my son is teething and has been for about 4 weeks now. from experience my daughters came through one at a time very very slowly, she started teething at 4 months old and didn't get all her teeth through until she was over a year old were as my son is getting nine at once, so i guess my answer is it varies from child to child and i could come tomorrow, next week or even next month. there's not much you can do yo speed it up but just giving cool teething rings and things like that.