Unsure :/

Jenna
So, I'm a week late for AF! I have sore boobs, nausea, lower back pain and egg white discharge! (sorry) iv taken a test yesterday BFN! However last time I fell pregnant (Angel baby at 12 weeks 16months ago) I never had a BFP, doc tested blood to confirm pregnancy! Is it normal to not yes positive through urine? Think I will book to see GP after weekend! Just wondered if this has been the same for anyone else? Thank you x