Ivf day 5 transfer

Anyone else who’s been through <a href="https://glowing.com/glow-fertility-program">ivf</a> , do they know of any symptoms which lead to success ? My breasts are very sore to touch, Iv had cramps all day and randomly feel so upset , I am on progesterone but I get quite a lot of clear discharge , are these symptoms just part of the progesterone ?