Back again with the questions.. enlighten me ladies!!

Kayla • Mommy of 3 TTC #4

Now that we’re TTC I’m paying attention to things I never paid attention to before. So here’s the 🏃‍♀️ down.... I had cramping around the time of implantation for about 2 days. It was very mild. I’ve noticed very frequent urination, been very lightheaded several times, headaches today and now I’m noticing watery milky white discharge. It is not accompanied by any foul odor, itching or anything of that nature. But it is very excessive. My AF is due in 3 days so is this just typical cm discharge before AF or is this possibly cm discharge of early pregnancy? I tried googling it but they have a million different reasons for this discharge. I’m so confused!