So I’ve always had perfect teeth. Never had a cavity ever. I feel like once I got pregnant with my daughter that…

So I’ve always had perfect teeth. Never had a cavity ever. I feel like once I got pregnant with my daughter that literally all changed . I would feel like my teeth were always falling out lol. I even feel like they got so nasty to , ive never had ugly teeth now I feel like the back of my teeth are yellowish , more like stained .. I’m going to the dentist tomorrow & im so scared more embarrassed. I haven’t gone since before my daughter & now I don’t even want them to see me.