Forum:Pregnancy tests

Hello, I am currently researching the history of pregnancy tests on television and trying to track down the earliest instances on Coronation Street. So far I just have episode 1587, Weds 31 March 1976, thanks to Corriepedia: http://coronationstreet.wikia.com/wiki/Episode_1587_(31st_March_1976 )

I'd really like to know about any other epidoes that feature or discuss pregnacy testings, especially if they predate Michelle Fowler's famous teen pregnancy in the first series of EastEnders in 1985. The earlier the better.

Searching for "pregnancy" turns up hundreds of hits, and I haven't had a chance to go through them all. Nor am I sure that every pregnancy test will be included in synopses. So if you can please help me out, I'd be extremely helpful. Basically, you are my best hope.

Thanks and all the best,

Jesse