Has anyone tried using Robitussin cough syrup to help conceive? My husband told me about it. Apparently, while looking into ways to help us on our journey of TTC, he came across some information about it. Obviously that peaked my curiosity! I started to do some research myself and have found several blogs and sites that say taking cough syrup with guaifenesin as the ONLY active ingredient will thin your CM, making it easier for sperm to swim and reach their destination. Just out of curiosity, has anyone heard of this or had any success themselves with using cough syrup to help TTC?