Am I pregnant? when should I test?

Patient: I am three days late for my period. I have never been late. My breasts are extemely sore, I have sometimes a creamy white discharge and at other times white but watery. I am very tired although I’ve gotten more than enough sleep the last three days. theres been an on and off dull ache in my uterus area. Is it too soon to take a pregnancy test?

Symptoms: three days late for period. Sore breasts, sensitive nipples. mood swings. fatigue. nausea after eating and loss of appetite at times. creamy white discharge followed by a watery white discharge. an on again off again ache in my uterus area (usually at bedtime and early morning).