confused by opk

[insywinsyspider]

ttc no 3, stopped bfeeding on 5th July, no af as yet but started temping to see if can catch first egg

now on day 46 after stopping bf had temp drop on day 39 and positive opk but temps after bit irratic and fertility friend not picking up possible ov, temp drop again this am, did another opk just out of curiousity and its +ve... any ideas, both +ve's were faint, have I just got crazy hormones at mo? have done couple of opk's between 39 and 46 and they've been -ve