just look at her belly, do you see eggs? Usually i know when my females are close to laying or i know they have laid is when i see eco-earth all over there tub...which means they were digging in their lay box.. just gently pick her up by her tail and look under at her belly...if you see eggs, she is gravid...that is the easiest way to tell :main_thumbsup:
the trouble is, i always think i see eggs...