I had been taking a sleeping pill that contins an antihistamine for years and this month decided ti stop taking it because i never seem to have fertile cm and have been worried about. So, i stopped taking it and BAM lots of ewcm so i am feeling better about this cycle and movong forward ttc. If you cant stop taking it, i would second the preseed suggestion and even more increase your water intake. Drink tons of water. There are also supplements you can take, but i dont know much about them.