You will be fine....
Yes, they take forever to grow.
If you want to find the eggs look at the very bottom of your stem plants on the stem part you'll see little square items that look like tags.
If you want you can raise them in a separate tank...
I've never done that though.
I had two originally in my tank and they made babies and after a while I think I got about eight. I'm not sure what your situation is but they definitely did not overrun my tank. I don't know if I got them out with gravel vacuums or what but honestly I just let them be.
after I had about eight extra ones I traded them into my fish store for some flakes or something...
Congratulations!