Anovulation? No egg is released?

Does anyone here know anything about anovulation? I’ve been reading up on it because this cycle I’ve noticed that my breasts aren’t sore at all (they are usually very sore and sensitive in my luteal phase, especially the nipples) and this is apparently a symptom of anovulation... I got a positive opk on Monday and had lots of EWCM on Sunday and Monday, but apparently you can get a positive opk even if an egg isn’t released?

Please help! Any information about this is greatly appreciated :)