So I ended my period on Tuesday(Dec 18) and then on Friday (Dec 21) I had unprotected sex and now I have a discharge and I've heard that discharge can mean pregnancy... it's white but it's not sticky or watery or anything. It just kind of sinks into my underwear... does this indicate pregnancy? I'm too afraid to use a test because I'm afraid of the answer. My next period is due to start on Jan 8, but my period has been switching around a lot lately

First... you need to research more on human reproduction and spend less time with urban legends and here-say.

Its way too early to know or even test for a pregnancy yet... you are going to have to wait until you are well over a week late to take a HPT. Otherwise you are wasting time and money.

It is more a sign of a infection, or even some STD, than pregnancy

There is no way to tell if you are pregnant or not till you either miss or do not miss your next period.

If you miss it, you still wait 10 days to two weeks to take a test