Help Me Out: TTC while Nursing

I am TTC baby number 4, but I've never been nursing while TTC, so not sure how normal this is. I'm tracking bbt (no shift yet). Getting constant EWCM (for a couple of months), no true positive opk, but close to it. I have a history of PCOS, but I'd usually get one or two positives before the actual positive opk and then a spike in bbt. Anyone else have constant near-positive opk while nursing? I'm assuming the hormones are causing it and we may have to wait until she's weaned to TTC. For reference, she will be a year old in 10 days and eats solids! Besides the last 5 ish day (teething and refusing solids) she was nursing a total of about 45 minutes per day with 0-1 night wakings.