I just need some advise I’m a bit scared

So I spotted on the 24th and my period usually begins around the 25th yet it did not. I have been having major breast pains yet no period. Today I spotted again and I do not usually spot when my period is about to begin. I have been sexually active with out protection yet I am not sure if it could be pregnancy considering I spotted the 2nd time a couple days after the 1st time