B.C.
I would guess this is normal. I think my girls have each had that happen to them. As long as it's not a lot of blood and only lasts a day maybe 2 while she it teething, it should be ok. She might just have sensitive gums. And my oldest didn't go to the dentist until she was 3. Our pediatric dentist actually recommend age 2. Since she said the first visits when they are 12 and 18 months are just to get them use to the office and on the second visit they do fluoride. So I wouldn't stress about the dentist until then.