PERIOD HELP?!?!

Hi, i'm 14, and im not sure if i got my period. I had a tiny dot in my underwear and a little line of red in the toilet. on my pad that i put on, i have a littlesmudge of red. When i went to the restroom and wiped, it was realllyyyy pink. Now that i went, there was no pink. Before this, i kind of fingered myself in the shower and am now afraid that what if i hurt myself and it's just blood and not my period?!?! help?!?! thanks.