Advice!!!

Alright, so my period is late. Only by 1-3 days, but still. I had really irregular cycles in 2017 and after working on my autoimmune conditions and also excersizing and eating healthy, i lost 30 pounds and my cycles have been pretty good again! I have pcos and was not ovulating before, but all cycles have been 28-30 days since April and I’ve been getting positive OPK’s between days 14/15! Anyways, we are beginning to try next month anyways and we didn’t try this month, so i only did an OPK on day 15 (never got a positive) since that’s my most common day to get a positive. We only BD day 12 and 18. Now, here we are, I’m on day 31 of my cycle and no sign of my period. Because they can be around 30 days, i wasn’t worried, but it hasn’t been over 30 days since March! I took a clear blue digital (says pregnant or not pregnant) and it was negative, so i don’t think I’m pregnant, but now I’m worried about my cycle being irregular again for some reason just when we’re going to start to TTC again (next month we’re starting again after taking a year break). Any words?