Robbitusin?? Anyone try??

Katie • Stay at home mommy as of 6/30/16!!!
So I started last week wed with taking robbitusin am and pm then yesterday bumped to 3x a day. I am not noticing any changes with my CM its dry? Will it increase this week as I ovulate around wed? I'm desperate 9 months now to try anything. 😬 want to be a mom so bad at 33 it's tough.