I fully agree with ppowb. The pull out method does not prevent pregnancy. Those symptoms are those that you'd see on a list of early pregnancy symptoms but you are exactly right, they also are pms symptoms. There is a lot of overlap so it is really just best to take a test. If you don't get your period, wait one full week and test again. Use first mornings urine if you can. Did your period come over the weekend, by the way?
Pull out sex is risky. Wait several days and run another test. Other signs might include unusual fatigue, more frequent peeing, changed appetite, feelings of nausea, backache, sore breasts all where different from regular PMS