I found this website through my search for knowledge on pregnancy tests. Has some great info on not only pg test but OPK's too and has lots of pictures!!!
www.peeonastick.com
Paige 8/5/99, Kara 7/22/03 and Benjamin 1/19/13
10 losses 1996-1998, 2 losses 2001-2002, 3 losses 2010-2012, loss 1/2014