Seems male and female alright
You could send in some stool to a vet who knows about frogs enough.
It might just indicate the frog has worms or flaggelates, but it might be nothing as well, just better to be save then sorry.
Lots of frogs stress out by getting a new environment, lowering their natural defense against those parasites.
You might wan't to put in some hollow cork piece(s) or other hide outs.
Here they loved spending the days inside a hide out, i provided this by a hollow cork tree and some hollows i created for them where some water collected, also great to lay their eggs in.