Teeth

Has anyone had their teeth break during pregnancy? A few weeks ago one of my teeth completely cracked in half and broke and then yesterday one totally broke and fell out (all except the root). I went to the dentist for the first one and I have an appointment to get it fixed after my pregnancy, but that's not until the end August. I'm terrified they are all going to keep breaking in the meantime. I've always had healthy teeth! Its very frustrating! Has this ever happened to anyone else?