If you have a regular 28-day cycle, than the intercourse on November 3rd and 4th just might have caught your egg if any precum/semen was inside of you. It really is too early to have symptoms, but I know how it is. I've been in your same situation many a times
I'd suggest waiting until you've actually missed your period before picking up a first response early result pregnancy test so that you don't waste the money. Getting a negative now would mean nothing anyway, so even though the wait is the woooorst, be strong! I know you can do it

Otherwise these last few days will be the longest days of your life.
Good luck hun, and please keep us updated on what happens.