What Supplements if any is everyone taking?

Besides prenatal vitamins are there other supplements that anyone recommends while TTC?  I have heard a lot about low dose baby aspirin lately & also B6.  Thoughts? Or pros & cons?  I am especially interested in the baby aspirin because I have heard it helps with implantation and I have had 2 chemical pregnancies the last 2 months. A friend had success with it after multiple miscarriages.  I have an appointment with my doctor but not until early September. I will ask then, but would like to start sooner if it helps.