Could this be implantion bleeding?

i was suppose to start my period 24th or 25th of june its now june 29 i have no period at all but keep getting this sharp cramp like pains every so often then when i went to the bathroom ( tmi sorry ) i wiped & there wasnt really blood but a clear like discharge with a very faint pink color to some of it, could this be implantation bleeding does it normally happen after a missed period? the only real symptoms im having or a bit of nausea like that feeling of about to throw up, & ive been pretty tired but thats really all does it sound like maybe im pregnant we've been trying for about 6 months now