For a few weeks I've been nautious, my breasts have been tender, I've been exhausted and very irritable and I feel bloated. I am on the birth control pill and more often than not my period is extremely accurate. I was 4 days late and now I have my period. I took a pregnancy test and one came up with an error and the other came up negative. Can I take a pregnancy test if I'm on my 'period' now or will it be inaccurate? I've been pregnant before and I just feel pregnant, but I never got my period the last time I was. What are the chances of me being pregnant?