cramps?

Chelsea • Oliver-James 19/05/2016💙 Harvey-Kai 27/08/2017 💙Darling husband 14/02/2013 💙 💋perfect💋
TMI. So this is my fertility chart. I also have a app called lady timer and it tells you the day you ovulate on, (Sunday) obviously we have a lot of sex. Since AF dissspeard on the days we have done it, sometimes it's been more than once a day unprotected. Tonight I'm having real bad cramps, although I already have one, I seriously can't remember as I didn't track back then. 
Also on my <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> my percentage of falling pregnant from the day coming off af had been ranging from 7.4% to right now 15.8%. And a medium chance. 
QUESTION---- is it possible for this cramping to be implantation cramping, or something related to pregnancy? Also been having ALOT of cm. like wetting my pants through. Sometimes watery sometimes thick white sticky.  Thanks.