Af due on 10/11. Similar symptoms anyone?

Kristin
We had sex before i ovulated on the 27th. So on the 18, 19, 21, 22,23, and 25th. I have another app for tracking and both tell me my af is due for 10/11. But anyways...i have been experiencing right pelvic pains, some cramps and back aches. My cm is watery now. My other app is telling me it's signs of conception!!! :) what do yall think?? The other app starts with an o, ovia or something like that.