Did you get these symptoms?

We have been using withdrawal method because we are fine if I get pregnant. so I ovulated last weekend and my period is due in 8 days. The last couple of days I've been feeling very tired and a little light headed, I've had the blood/metal taste in the back of my throat and I've had lower back ache. My nipples are slightly sensitive but not painful. Everyone at work told me today I was looking pale and to be honest I was feeling a bit light headed and nauseous but nothing i couldn't cope with. It wasn't until today that I considered I may be pregnant. Did anyone get these symptoms around the 7 dpo and were pregnant?