Spotting?? Sorry if TMI

Tara
Ladies, ok so here goes, me and my husband used withdrawal twice (exactly a week ago today) unsure if it was fully in time if you get my meaning? And my period is due exactly a week from today, with that said I have been experiencing slightly sore breasts and very slight sick feeling throughout the last few days (I've tried dieting so it could be down to that too) also extremely tired throughout the day but wide awake at night and having really strange dreams, this evening I've wiped myself and found pinky blood streaks in my CM could this be a sign that I could possibly be pregnant?? As usually before period I get brownish tint to CM not pink blood streaks?! Sorry ladies but it's really got me thinking?? Can you get symptoms just a week after?!?! Should I test tomorrow?!?!