My period was due September 14 but it was 7 days late and that night I started spotting & got lasted for 5days. Then on the 29th my husband came in me on the 29 and that is one of my fertile and I have been having some headaches & some lower back pain. Then on the 1st of October my husband came in me again and on the 3rd I woke up out my sleep because I was have extreme cramps & I was feeling like I had to throw up but I didn't. Now I'm kinda Moody and emotional. Could I be pregnant? Someone help me please