Confused

JM • 28 started TTC #baby 1 June 2016. 2 and half years 🌟
I'm a bit confused. I normally ovulate on cd16 which is today. I normally get a heap of ewcm. However I haven't yet. I'm regular in cycles and never miss an AF
I started AF on 6th and finished on the 10th. On cd9 and cd10 I noticed when checking cm I had wet clear slippery cm that stretched between my fingers but wasn't cm it was the watery cm. my fertile window didn't apparently start till the 17th. Also noticed on 19th and 20th I had the same watery cm. 
it's now cd 16 and Ive checked cm and it feels dried up and feels like paste when I rub my fingers together, I don't think I see any colour to it tho. and my cervix feels firm again. Do you think I may have ovulated early? Every other month I've ovulated on cd16 on the 22nd. And get a heap of ewcm. But haven't so far. 
Feeling so tired, headaches, feeling quiet sick in the stomach, moody. Just feeling off. 
Any opinions?