so i usually have a 26-28 day period last about 5days well im 4 days late no sign of period coming im having medium white creamy discharge sometimes its dry. my breast is sensitive, appetite picked up want more sweets, sharp pelvic pain here an there on the left side, constipation and always tired with headaches everyday. i took a test 7days before my cycle it was negative, than took one 3days past my cycle it was negative. Could i still be pregnant