Female dwarf hamster help

[Domlepts]

Hi, I have a robo a male Russian dwarf and a female Russian dwarf.

I've had the female 3 weeks now she's ace! She's about 7 months now I homed her off a breeder. She was chunky but I've managed to get her weight down ANYWAY I just got her out as she woke from her nap for a drink and noticed she was wet below could this be in heat or just had a wee maybe? My female Syrians never went into heat (had a mammary tumour) so it's new to me. She's not freezing or arching her back but is lively bright eyed eating drinking playing etc and there NO foul smell. Am I worrying for nothing? I'll enclose a pic but not sure how to? I'm on my phone