I've been trying to get pregnant for the past 3 months. I did not use contraception before that as my partner had a vasectomy which has now been reversed. Today I have had some really light bleeding although I am not due my period for another 3 days. I don't feel my usual psycopathic tendencies that I feel when I am due on and I don't feel like curling up in a corner and crying... is there any way that I could be pregnant??