Question: when do you miss your first period when pregnant?
Answer: Sore or sensitive breasts. One of the earliest changes you may notice during pregnancy is sore or aching breasts. ... 
Darkening areolas. ... 
Fatigue. ... 
Nausea. ... 
Cervical mucus. ... 
Implantation bleeding. ... 
Frequent urination. ... 
Basal body temperature.