please help!!!!

I'm 28 & was told (@14) me having children would be tough when I was older .. well I have a 5 yr old and also just stopped mirena 8-16-17 been TTC since I got my Flow ( at least I think that's what it is ) on 10-24-17 still here on 11-9-17 not filling a panty liner but some in bowl and on tp after wiping ... google made me think I was pregnant when I googled bleeding for 16 days ... took a test on 11-8-17 & BFN showed up right away... it says I'm ovulating today can this be when I'm still bleeding??? anyone else have this issue with bleeding so long and any luck conceiving??