hopeful but realistic

so according to glow i was supposed to start my period yesterday, according to ovia im supposed to start on the 13th. i haven't started it yet so idk. today i checked my cm and i got this, could it be the start of my period or could it be late implantation bleeding. also ive never had cm like this before. we have been ttc for 6 months and this month we were both taking fertility aids and i was doing opks and checking bbt. we bd on every day of my fertile week including when i got my pos opk and the two days after that. i took a preg. test on 8dpo, 10dpo and 11dpo and they were all bfn but maybe it was too early? just give me a little hope or be brutally honest. i just wanna know if anyone has had this before. ill put the pics in the comments because they are a little tmi. thanks in advance.