Hi Im 11 dpo for the last 5 days I’ve had brown/pink discharge . I’ve had cramps, lower backache and today have woke and had quite a few dizzy spells . Is this implantation and should implantation bleeding last that long ? It’s not enough for a pad or tampon it’s only when I wipe . Should I start testing or wait till Sunday when I'm supposed to come on my period ? I've never had any of these symptoms before so hoping it's implantation