Please help!

[jazzie17]

So on Saturday I took an opk in the morning and again at night... both were smiley faces. I took one yesterday and it was negative. I decided to just randomly take one and there was a smiley! What could be going on?? Please help!

 

[Gypsy99]

Sometimes it depends on urine concentration and sometimes it may be your body trying to ovulate a second time if the first one isn't successful.