I was crampy from the day I found out (4 weeks along) until like 7 or 8 weeks. My morning sickness started at 6 weeks and lasted untli about 18-20 weeks. I did have days that I didn't feel sick and would get worried, but of course it came right back. Your body is adjusting to being pregnant so that is all normal. You will be crampy on and off throughout your pregnancy, up until after the baby is born (you usually cramp because of your uterus stretching but after the baby is born your uterus is contracting to go down, so you will have cramping then). But what you are experiencing is normal. Some women also spot. If you do have severe cramping or bleeding, you should call the doctor though.
honestly you are so early in your pregnancy that you have no worries. most women don't get symptoms until later in their pregnancy or have even found out yet! they will come back soon. just relax and love that there are no yucky symptoms right now! i was nauseous from week 6-8 but now that has disappeared. thank god! lol. still really tired though. i dont think that symptom will ever go away! congrats. and good luck! dont stress!
I'm 31 weeks and sometimes feel crampy, like my period is going to start (then I remember I'm pregnant! Ha ha!). Symptoms CAN come and go. They fluctuate with your hormones. Taking another test won't matter because if you have any HCG in your system that is high enough for the test to detect you'll get a positive.
The discharge is a normal symptom as well. The cramping is definitely normal.