I never used the egg whites (taking charge of your fertility tells how) but the Robitussin didn't work very well for me. What I used that really worked this cycle (expecting #2!) was Evening primrose oil, 1500-3000mg per day and I drank large amounts of green tea. With the green tea, I tried it the month before and it didn't help a lot, so I really think it was the EPO. Good luck to you. Check out my chart if you want to see how many days of fertile CM I had this cycle.