Advice Please

AF was due on 26th Feb, it was late & I took 2 pregnancy tests that both came back negative. Fair Enough. AF then started on the 28th Feb! AF is still with me now but Glow is telling me I am also fertile now, so last night I tested with an ovulation kit & it was positive, happy days. So my Husband & I did the deed. Today I took another ovulation kit & still positive, but due to the fact I still have AF which is a strange consistency I just thought I would take a Pregnancy test also . . What does everyone make of the below . . . .why would I be testing positive for Ovulation & Pregnancy but still be having AF? I had a realy nasty miscarriage at 12 weeks in Feb 2015 & I could not face another one ;o(