Questions about cycle?

So according to glow I'm 12 days late. My other app I'm a 10 days late. If the follicular stage can be blamed for being late. Then is it possible to have a 31 day long follicular stage?? Because my luteal phase is 16 days. And I've never had a 49 day cycle like I have this time. I tested around 4 days late with dollar tree test and got a BFN. And I'm not testing again till 2 weeks late. But all the signs could point to being pregnant? Is it possible for me to still be pregnant? Could it be possible that I just wasn't producing enough hgc to detect it?