Cycle buddies suffering an irregular cycle?

Monica • I`m 22. Engaged to my partner of 6.5yrs. We have 2 son's, Samuel Reece joined heaven at 20weeks gestation to spont preterm labour, Vinvent Xavier who is now 3, was 7 weeks early, TTC#3
Anyone else suffering a very odd cycle this month? I BBT track so pinpoint when i ovulate....this cycle i didn't ovulate 'til CD21.... i actually thought i might not ovulate this month seeing as most months i ovulate CD17, 18 or 19. I'm now CD27 and very crampy, kind of like a pre-menstrual crampy which isn't normal for me, normally I'd be getting sore tender boobs by now and not much else. Guess I'll wait and see how this pans out, i will freak out if i get my period 😯 i do have PCOS though, but I've been losing weight (my PCOS caused insulin resistance so i gained a lot the last 3.5yrs) slowly over the last 6 month's, i thought i would get more regular and have an increased chance of finally conceiving (been trying 2yrs4months now) not mess with my cycles :(