My Mystery Snail Laid Egg Clutch Twice

I have a female yellow mystery snail that laid her first clutch about a month ago and they never hatched. I figure it was he first try. My question is Tuesday when we got up there was a clutch that was a bigger size. Then this morning she laid another clutch a bit bigger. What happened here? I will be trying to hatch both, but this is my first time dealing with mystery snails.
Thank you

 

I am inexperienced with this but if you have a male they should hatch between just under two weeks to a full month. Otherwise I am sure someone else will have something more helpful to say.

 

Just my hunch, but without a male to fertilize them, they're just blanks, just like the chicken eggs we are so fond of...

 

Well this is just crazy! Sorry for the last response...I thought I had it set up to email me when somebody answered. There is a male snail in with the yellow one and I bought them both at the same time just over 6 months ago. This is the first time for me, but I kid you not, I have 4 clutches of eggs in 5 days?!? I have kept them all and put them in a container with wet paper towel and dry one. I will watch them closely and when and if they change colors and look like they might hatch, I will cull what I can't keep. I am just so freaked out by the fact that I have 4 nice sized clutches of eggs in such a short period of time. NO OTHER snails are present or have been? Crazy!
Thanks for the input, Guess I just have some funky snails

 

Make sure the clutches stay moist and on the warm side

 

Yeah, when they get going, they get going. Make sure she can’t get out of the tank - I found mine crawling over egg crate on top of the tank, looking for a place to lay.

 

That's what made me think she might be getting ready to lay...get out twice and left her trail on my carpet. The lid is now secure! I have the 4 clutches in a throw away container with one wet paper towel and then a dry one floating in the fish tank. Thanks