I started getting a discharge around 6 weeks too, that was kinda like milky egg-white (tmi, sorry). When I talked to my doc, I was told it's perfectly normal, and I still get a bit of discharge right now. I think it has something to do with the forming of the mucus plug in our bodies.
Cramps are normal, too... it's likely your uterus stretching and moving to make room for your bebe. Again, same thing for me. I honestly wouldn't worry, unless it get to the point of severe pain that's unbearable, or there is brown/red discharge. Then that's the time to call the doc's.
Hope that's a bit of comfort, as your symptoms are perfectly normal.
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