If so.. Is my molly pregnant? Cause i can't see the black dot u suppose to see on a molly when she is pregnant

Heres a video

she is about 2-3 weeks out by the size easy way is to just watch and when she starts to lay down more and more on the gravel or just chills in the back out of the way of other fish, then she is like a week or less to giving birth

i found with mine they were born at night most of the time and near the weekend at one point i streuggled to keep up with them all i was breeding mollys plattys and guppys and selling them to a local fish shop. for some reason i cant c the video