I'm confused about a reading I have on my maybe baby - can anyone help?

I'm day 26 after a m/c. I thought I O'd about 2 weeks ago (strong ferning around then which went away). I have had some pg symptoms which seem to have gone away in the last couple of days.

I decided to use the maybe baby (don't know why) today & have found something I've never seen before. I have really long lines with slight short ferning - these are completely different to what I normally see around O. I also have things that kind of look like stars or maybe four leaf clovers (I know that sounds a bit silly).

Has anyone come across this before? I'd like to know what it could mean.