Cervical mucas question!!!!! Please answer!

Ok, so last month, I started really monitoring my cm. I researched on what was normal and abnormal, and also what was normal for me. So anyway, last month, near the end of my cycle, I experienced thick, lotiony like cm (sorry, tmi) and then got really dry right before AF. This month, around 10dpo, my cm went from being sticky to watery and a crazy amount! Sooo much cm. And its not discolored and it doesn't have a foul smell. I'm 3 days from af, and still experiencing it. I also checked my cervix position around 10dpo, and it was so high that I could barely reach it, ans soft. I haven't checked it again. Does anyone have any insight? PS: I also had a weird pinch and dull cramps in my left lower abdomen around 8dpo, and my lower back is killing me! I also have sore boobs, and I'm peeing like crazy. I have one first response 6 days sooner test left, and a bunch of cheapies. Should I test? If so, should I use the fr or the cheapie? I'm 3 days until af is supposed to come. Thanks in advance! Sorry for the long post! Baby dust to you all!