My period is very dark and there was tiny blood clots

Hey, I'm 14 and I had sex about a month ago or less and I have noticed that my period is a very very dark color and it has very tiny blood clots but it's is so dark it looks brown and before my period got here I had a clear goo coming out my vaginalarea for about a week and a half... I read that was normal but my period is an extremely dark color and I can't go to my mom cause she thinks I'm an innocent virgin and the guy I was with used a condom but did not pull out all though he said he did but then when we broke up he said he never pulled out and that a condom was all he had to use for protection and im not on birth control so...?im FLIPPING sh*t CAUSE NOW IM SCARED IM PREGNANT CAUSE MY PERIOD IS BROWN AND DARK AND SCARY AND IVE READ THAT IT COULD BE PREGNANCY BUT IM TERRIFIED AND IF IT IS PREGNANCY I NEED A WAY TO KILL IT AT HOME AND EASILY!!!!! SOMEBODY LEASE HELP AND ANSWER QUICK CAUSE I AM SOOOOOO SOOOOO WORRIED