need help determining what happened to my mouse

My friend and I switched female mice so that her female could mate with my
male. Her female and my male get along better than the female I had with him
before. I do believe my male mated with the female he is currently
with --they both have very calm temperaments, did not come from the same
litter, and neither is dominating the other. However, the day after they
mated I took both mice out and let them crawl on the end table. That was
when something came out of the female, a strand of what looked like clear,
very hard feces linked together and another one exactly the same but having
a reddish brown color and whatever substance was linking them was clear and
hard as well. She is eating fine, her diet has remained the same. I clean
the cage often and cleaned it thoroughly before I introduced her to her new
cage. I was not able to see if this substance came from her anus or her
vagina. Could it have been the semen plug that mice develop so no other male
is able to mate with her for a day after mating? Or could it be the eggs of
the babies that her body was disposing of? Or could it be some weird feces,
and she might be sick?

Bethany

>Or could it be

been through a lot of mice, never seen any of that. if she's eating then she's
probably ok.
--

"I am the way, and the truth, and the life; no one comes to the father, but
through me." john 14:6