Can u get a false positive opk?

Jessica • Wife💍 Mother of 4! Craft boss!! http://www.instagram.com/jessicaann1115 Www.instagram.com/gorjesscreations
I had a positive on cycle day 12 I am now on cycle day 17 and I have been having some cramping on my left side I also have egg whites and my cervix is very open I'm confused lol