Doing OPK first time

Ada • 40 years old and been married to my husband for almost 5 years.. We are currently trying to expand our family ( he has 2 daughters from previous relationships).

I am on my 4th day testing and both lines appear to be of similar color, however I don't want to put my hopes up, which is why I am asking for help. Does it seem positive to you guys or should I continue to test? TYIA