Really confused about ovulation!!?

My last period was the 25th of april, it is generally heavy for 2 to 3 days then pretty much disappears, ovulation sites say i ovulated on the 8th of may??? did the bd pretty much every second day, i generally know when im ovulating as my cm is so abundant i feel like iv wet my self, i saw the egg white cm on sat and had lower right side pain on sunday along with a high temp, is it possible to get pregnant before actual cm change or do can it only happen when the cm change happens, also for the last few days my cm has been Drying up as usual but today when i went to the loo, i had lots of cm again, im really confused,,, iv already been through this twice before so i feel a bit stupid asking these questions, 2 previous pregnancies gave me to gorgeous princes:):):) kevin and ollie:), we wud love a little girl to finish our family, also as im writing this iv got dull back pain similar to the pain i get when i have my period, also my mum asked me today was i pregnant???? freaked me out to be honest as she doesn't know me and my hubby are tryin again,,, creepie!!!! so ladies how many days do you think im past ovulation as it really confuses me, and when is the earliest i can test