pregnancy symptoms

Joy
This is the first month that my husband and I have been TCC and I have never really thought about all of these different bodily functions this much before! I am currently in my TWW and waiting patiently to test. However, I was curious if very heavy, watery CM was a symptom of pregnancy. I've never had this much CM, except when ovulating, but I'm pretty sure that already happen on October 6th. I took an OPK last night just in case I read the lh surge wrong last week, and I had a pretty dark line. It's not as dark or darker than the control, but it definitely detects the hormone. I also have other pregnancy symptoms (nausea, headache, backache) but I'm afraid it's all in my head as I am waiting. Is heavy, watery CM a pregnancy symptom or am I just way off on when I ovulate?