TTC with PCOS

Hi All

I need some advice please! I have PCOS and have been taking inofolic since April 30th so not long at all. I record my periods on Flo app and according to the app with my irregular cycles (average 40 days!) I am due to ovulate 21st May. I had a negative result on my ovulation stick yesterday so will continue with these but have noticed stretchy translucent CM this morning? Can't work out if I am ovulating but my test is negative? Any advice helpful! Thank you 🙂 X