Question: how to tell if you're pregnant a week before your period?
Answer: Fatigue. Sometimes we all feel a little tired and rundown if we're not taking care of ourselves properly. ... 
Breast Changes. In the first few weeks of pregnancy, your breasts may become heavy, tender, swollen, or tender. ... 
Spotting. ... 
Cramping. ... 
Changes in Food Preference. ... 
Sensitivity to Smells. ... 
Frequent Urination. ... 
Light Headedness.