I had got my period on the 3rd a week or two after I had sex on my ovulation day. Last like 3-4 days, had sex the next day right after it stopped and a couple days later I started feeeling sick like cold symptoms such as a runny/stuffy nose headache constipation sore throat sneezing and now it's the 27th and I'm bleeding again, could I be pregnant? I'm not cramping as bad, I'm just having abdominal pains and back pains that feel like I've been hunched over all day. Please tell me these are signs of pregnancy.