Hi I have white/clear discharge coming out of me and I had unprotected sex a few days ago could I be pregnant. Should I take a pregnancy test now or should I wait a 2 to 4 weeks to take one...

If you had sex a few days ago, of course you could be pregnant, what types of protection did you use ? If any ?

And no there is no way to test a few days after sex, even two weeks. You will have to wait till it is time for your period, see if you miss it, then wait a week after that to test.
Then use the first urine of the morning when you wake up.