Doesn't it cost a fortune? Mind you, pg tests are very cheap here.
I am the opposite, I have never used OPK even though it's hard to tell when I am ovulating and I hate to take pregnancy tests. I didn't take my last one until I was nearly 7 weeks gone last time. Partly this is because my periods are erratic so a missing one doesn't mean much and partly because I'm scared of early m/c. I'd rather not know I was pg as long as possible. Didn't quite work out this time, of course, but I'll be the same next time.
Clare