What other conditions can mask the first signs of being pregnant?
Women with irregular menstrual cycles may not realize a missed period is the hallmark symptom of pregnancy, notes MedicineNet. A thick, murky vaginal discharge, which is normal the first few weeks of pregnancy as the vaginal walls thicken, may be a yeast or bacterial infection and not a sign of pregnancy. Many women experience soreness and fullness of the breasts during the first weeks of pregnancy. This can also be a normal symptom of a menstrual cycle.
Sources: medicinenet.com, everydayhealth.com