1. dwelling on the bottom.
2. hiding near plants.
3. may not feed as well when near due
4. male tends to chase her lot as if he is waiting for the fry to come out so he can eat them lol.
5. mine all tend to go near my powerhead, or the internal filter, or near my uplift tubes (but i do havily plant near the corners where these appliances are)
Other than that m8 thats all.
Most of the time when her belly is big, if you put her in the trap and put the trap near the heater, it tends to hewlp them on a bit.
il post you some pics of a guppy thats well on dut to drop.