i am newly married and about a week after our arrival home i started feeling extremely exhausted, i noticed the following week my breasts were fuller and my belly was shifting, i am unable to wear any pants and feel uncomfortable with the pressure around my waist , i also have had continual headaches , i have had lower back pain and constant adominal pain ( cramps ) i had a light red blood discharge for 3 days i took 4 pregnancy test all negative i have major mood swings and i have been eating way above my normal intake as well as i have urination feelings more and i have horrible gas on sunday i have had red blood discharge for 3 days now and it is extremely light am i pregnant ?