thoughts on CM please 😋

I have a 31 day cycle haven't been tracking.
Day 31-small amounts of ewcm never get this 
(pretty sure i ovulated already)
Day 32, 33, 34 alot of watery very thin stretchy ewcm  mixed with milky cm.   tested BFN
Day 35 didn't notice much 
Day 36 light white creamy cm
Cycle day 37 no sign of AF- lotion stretchy 
(like ewcm ) cm and notices a random blob of yellow very stretchy ewcm?  (Never had that) 
Having slight cramps today (cd37) that's all
Nipples don't hurt at all just a bit tender 
On cd-32-36 was having the strangest tummy noises like just gurgling  don't know if that is anything lol
Thoughts on the yellow cm part?Â