No period and no pregnancy symptoms.
Pregnancy symptoms can vary greatly from one woman to the next. I didn't know I was pregnant until 6 weeks and had no symptoms until around 8 weeks. Aside from missed periods, the only thing I felt was TIRED! If you have missed your period take a pregnancy test. If that comes out negative and you're still unsure, make an appointment with your doctor and he can do a blood test, which is more accurate than a urine test.