Help!!

My almost 9 month old got her 2 bottom teeth at 6 months. Top two just recently came through. I know her other 2 top teeth are usually supposed to come before her bottoms.

Well this morning I noticed that this tooth just came through. It didn't grow in the same spot that all the other teeth have. Its more in the back than the front? Is this normal? It has a brown spot on it, I was thinking maybe its blood? Idk but I'm gonna call a dentist tomorrow either way. I'm just worried.

Has this happened to anyone elses baby?