What Does Watery And Stringy Discharge During Ovulation Mean?

I've been trying to conceive now for a few months. I'm so confused on the whole process and I've read so much on the internet. I had intercourse through "my fertile times" my first date of my last menstrual period was 1/31/2010 and charts said my day to ovulate was 2/14/2010 so I had intercourse everyday several times a day 4 days before my ovulation and the night before my ovulation. Now it's 2/17/2010 and I had some mild cramping last night right about my pelvic bone and had cramping when I woke up this morning. The past 3 or 4 days I've had "un-normal" discharge, I usually have the "milky egg white stringy" mucus but the past 3 days it's been "globby, watery, soaking wet" (TMI-i know i'm sorry) but also when I go to wipe it's slippery, I also noticed when I stuck a finger in there to see the mucus it was very stringy I could pull it out. All I want to know is there a chance that I could be pregnant? Also, how soon will I know and how soon can I take a pregnancy test? I have other symptoms.