I haven't started my period but i do release a lot of discharge could that be a sign of pregnancy?

Likely not: A lot of discharge is not a sign of pregnancy. This actually might be the start of your period. I am uncertain of when your period is due, but if it is soon then this discharge could be a precursor to your regular period. If you have a period you cannot be pregnant. If you do not have your regular period after this discharge you could take a pregnancy test about 7 days after your usual period.