Yesterday I thought I got a + OPK but now I look at it, it does seem to be maybe a shade lighter than the control line.

I've just done another one today and it's DEFINITELY positive - it came up within seconds and the test line is darker than the control line.

So was yesterday's one still classed as negative, and today's one as positive?

We've already DTD today 8-[ but should we DTD again tomorrow or would Sunday be alright? You O 24 - 48 hours after the + OPK, is that right? We've been trying to DTD every second day (and have done since day 11, currently CD17 now). Do you think today and Sunday would be alright or do we need to sneak in another one tomorrow instead of Sunday?!?!