What the crap?!?!

Rebecca • Have two lil boys that I love dearly 1/2/14 & 12/5/17 and a precious lil girl 12/21/18
Hello all my af was due yesterday according to glow and not the 3rd and all ive have had was a watery white cm discharge for the past three days cramping but not af symptoms ive been having alot of pregnancy symptoms. When should I test??