AF due in 3 days.. too early for symptoms?

Carla
So I have symptoms that could either be pms or pregnancy. My breasts are sore, I had a dull period pain a for a few days a week early but the most unusual symptom is I am heavily bloated and keep burping. It's even waking me up. Perhaps I'm just poorly but I wondered if anybody else knows if this is a symptom I could be pregnant?