A can a 11 yr old girl get pregnant by a tip o f a tooth brush?

No, an 11-year-old girl cannot get pregnant from the tip of a toothbrush. Pregnancy occurs when sperm fertilizes an egg, which typically requires sexual intercourse or other forms of direct sperm transfer. The toothbrush itself does not introduce sperm in a way that could lead to pregnancy. However, it's important for children to receive proper education about reproduction and sexual health.