Patiently waiting...

So I'm about three days late for my period. I have been experiencing some things that may lead me to think I may be pregnant.  My breast have been sore for maybe about two weeks now I have had some slight nausea I actually vomited Friday morning after my partner and I had sex (weird). Also I did spot sometime last week don't remember what day exactly but it was light pink and then "old blood" this lasted for two days (1st day pink 2nd "old blood.") I'm patiently waiting for my period to come because I don't want to get my hopes and get a negative test result because I experienced this before and was not pregnant. I have three children already and I know what I felt with them but I'm confused this time I don't what to think. Take a test or not take a test??? Any suggestions 
Sincerely L