Help.

My Boyfriend & I Have Had Sex About 5 Times In The Past 2 Weeks & 2 Of Those Times Were Unprotected. He Says He Didn't Nut In Me, But Lately I've Been Parinoid Thinking I'm Pregnant Because He Was My First. I Haven't Had A Pregnancy Test Yet. But I Have Been Bloated & Very Tired & Lots & Lots Of Headaches. My Period Comes On The 10th & It's The 3rd. Not Sure If I'm Pregnant Or Not.