Have I conceived? Or am I ovulating? Or maybe it's af!?

Kl
Seriously hats off to anybody that has been ttc for a long time, I'm not sure how all you amazing women do it! I'm on day 29 of my usually spot on 28 day cycle and af hasn't showed yet. This roller coaster ride is so incredibly hard and I feel like I'm on it all by myself. My husband is very blasé and is obviously interested in the trying part, but not the rest of it. He definitely doesn't understand at all the emotional ride I'm on and I don't really feel like I can talk to him about it because to him it's a simple "oh well we will try again next month." 
Anyway I've been feeling like af has been coming for the past 4 days with some really light cramping and twinges, I've also just been feeling different I don't really know how to explain it though. I'm pretty sure I'm 15 dpo so thought it would be safe to test this morning since af is late and all but I got a bfn 😞 
I've been temping this cycle for the first time but missed the first week or so so I believe I'm having a tripashic cycle but can't know for sure with the missing data. Glow has changed my prediction since I started to temp and put ovulation down as having occurred around day 23 due to a rise in temps and therefore it says my period isn't due for another week however I haven't had any symptoms of ovulation then, I'm pretty sure it happened at the original date glow said of day 13, as this is when I had a higher sex drive and egg white cm...also I've never had a cycle longer than 28 days so I'm really not sure what's going on I'm so confused! Have I just tested to early??