I have been experienceing cramps lower back pain and spotting, which lasted two days. but cramps are still present. my period is always regular and i never cramp in between periods which is making me a little nervous. I am due for my period May 5th. MY husband and i had sex the 15th.. which puts me right about the time of ovulation to start. only one day before. All pregnancy test are coming up negitive but i am still 14 days away from my period. I am moody, emotional... tired... change in appetite.. so please some help ladies!!!!