In my opinion if you are REALLY in tune with your body( ovulation, period dates, late period, and when they should start and stages of discharge) then you can be able to tell by your discharge when you are the most fertile and when you are pregnant. I have noticed the first time being and all the signs and that’s what made me become more on time with my body. My second pregnancy I could tell by my discharge and felt the implantation/cramping during my second pregnancy which was also a loss. I can remember what I was doing and how it felt for a day or so. For my third pregnancy which was another loss I could also faintly tell that I was pregnant it was a chemical pregnancy. After being scared and I wanted to give up and stop tracking so much what days are what I am now having a beautiful and successful pregnancy with a baby boy. In my opinion it is possible ladies for you to be super in tune with your body by these few indications but NOT ALWAYS! It just so happened to work for me.