I’m really scared

So my period starts in a lil over a week but I’m having brown discharge and I’ve had it for the past 2-3 days. It’s not a lot like period blood would be, it looks like normal discharge for the most part but it’s brown and I don’t wanna be pregnant (I had sex a lil over a week ago) and if I’m pregnant then I don’t want the baby, I need home remedies to get rid of it cause my parents will kill me. But I have no way of getting a pregnancy test either..Please help😭😭