I just went thru that for 2 weeks. The cramping was so annoying and all day long. I went to the ER and they checked everything and I was fine. It is very normal. As long as you're not bleeding red and hurled over in pain, just wait it out. Im 6 weeks now and the cramping is subsiding but I still have a little pink spotting.
Usually spotting is normal around this time due to implantation. But yes definitely do call the doctor or even go to the e.r if you feel that the discharge becomes more bloody or heavier and the cramps get worse. Good luck!