Pregnancy symptoms? discharge?

sorry this so uhh hmm personal but can anyone explain to me what the discharge you get is like in early pregnancy? I am having this discharge white and almost stretchy like. Keeps me thinking my period started early. I'm also having other symptoms such as sore breasts, fatigue, constipation, mood swings, and period like cramps. My period isn't in-till next Thursday so its to early to take a test but all these symptoms match up to early pregnancy symptoms. but anyways can anyone explain to me what this discharge is and if its related to early pregnancy symptoms?