Not to worry, it happens a lot!! She will drop again in 35 days. so mark it on your calender and be ready early morning at day 33 onward. Peak into the tank without the light on. putting on the light seems to make the babies usually at the surface, noticable, and mom will scoop them up. If you peak in the back and see some then open the front and feed her at a far away spot, then go back and try to net a few at a time into a cup or tub or something with water from the tank. Once collected you can decide are you moving them to a grow out tank, or are you moving mom out? You have 35 days to decide what you are going to do on the next blessed day. LOL. oh and be caredul what you wish for... my 13 baby mollies seem to all be females.... I think I will let nature take it's course from now on. Good luck.
Every kid, regardless of what they are going through, is ONE caring adult away from being a success story. ~ Josh Shipp, Teen Behavior Expert