If its a week ago than you might want to wait and see if you miss the due date of your period and normally you should have the test done 10 days after you missed your cycle. Hope this helps!!! And if you are TTC baby dust to you... Hope the hpt is positive.
If you only had sex a week ago, you wouldn't be feeling any symptoms of pregnancy. The creamy discharge you had was probably due to ovulation, which would be about right since you're not due your period for another 2-3 weeks.
When you had sex, might have just been a little early to coincide with ovulation - but you never know. All you can do is wait until your next period is due, and if it doesn't show then take a test and see what it says. Apart from that, there's no way to know, so just wait it out.