12dpo, vvfl yesterday but vvvvfl/bfns today?

Sarah-Jane • TTC 16 months💏We did it🤰🏽Sophie born 10/7/18💕
Been spotting since Thursday night (just bits of brown blood) and still spotting it now on Sunday. I took 3 diff brand tests tests yesterday and had vvvfl on, took some more at 10pm and BFN. Took another 2 at 12pm today and vvvvvvfl or are they both BFN? I'm so confused 🤦🏽‍♀️ 
1st pic taken yesterday 11dpo at 3pm and 2nd pic this afternoon
Had a chemical last month, is it happening again? Any insight would be appreciated ❤️ after 10 months TTC and sperm issues I can't take much more 😓