So, my period is due in 8 days so its too early to know if im pregnant and take a test.. But my boobs have been so sore for the last 4 days and i have also been very gassy and having some stomach issues.. Has anyone heard of that as an early symptom? It is gas discomfort that sometimes just builds up and feels super uncomfortable. Last time i had unprotected sex was 2days before my fertile days.. Advice??