Opinions please!

Ok, so my husband and I have 2 kids and we have been wanting a 3rd. We have not used protection lately because we decided if it's meant to happen it will. So the past couple of days I have been feeling weird. I have had lower abdomen pain, almost like I have done a lot of crunches, it is even tender to the touch. I have almost no appetite, I have been peeing a lot more, I have not noticed any chance in my breast, but I don't examine them everyday. I am supposed to start my period on the 28th. My CM is weird looking to me tho, like different then normal. What do you guys think? If I tested tomorrow do you think it would be to soon?

This is my CM right now.