I am on cerazette (mini-pil) and had sex about 4 weeks ago. I never get periods whilst on cerazette but this time i had spotting for two weeks. The spotting has now past and I constantly feel sick, tired, the need to go to the toilet all the time, that 'feeling' like there is something there. I am pretty sure that I am pregnant but the tests keep coming back negative. Am I testing too early? or could the results be effected from me being on cerazette? I considered going to the doctors but I don't think there is any point as they will just do the exact same test as I have done at home. Advice would really be appreciated.