I need opk advice

Barbara • 13 yo dd, gave up on any more 💔
So it's currently 9 am, I work night shift and have been checking opks before going to bed. The one this morning is really close but not quite there. How reliable are they if I check when I wake up before work? Wanna know if I need to do a quick bd once hubby is home and before I have to leave or if it can wait another day. This was this mornings.