Ferility Microscope: what am I looking at

I've started using a fertility microscope (thanks Bellababysmum!) the last few weeks and what I am looking at under it has changed the last few days.

I wouldn't say it looks like a fern though and I was wondering if that is exactly what I am looking for. I've compared what I'm seeing to what the pictures look like at http://www.fertile-focus.com/epregnancy.html and again this different. Is there a good website with pictures of what isn't ferning and what is?

I find mine pretty tricky to use. Some days I see a definate fern and then I wont see it again for the whole cycle. Sometimes the fern doesn't even correspond to my fertile period.
However when you see a fern, you will know its a fern!
Some people get wonderful results from them tho. Maybe there is a trick to them.
This website has some good pics:
http://www.maybebaby.com.au/_how_does_maybe_baby_work.php
Good Luck!