I'm 16 weeks pregnant and I am experiencing really sensitive teeth. They feel really sore. My teeth are not the cleanest as in I do have some plaque and staining because brushing my teeth for more than a minute would make me vomit so I'm booking an appointment to get them clean regardless but until then I'm scared that my teeth will fall off or something bad is going on. I don't have any bleeding gums. Just very sore teeth like I've got braces on. Is this normal?