HELP!!!!!!!!

So I finished my period a couple of times and since then I have had a lot of discharge and it was normal at first but now it is like mucus and sticky (there is no weird smell) I have also got really bad skin lately and tender breasts as well as bad stomach pains (stabbing feeling). I have had protected sex twice since my period the second time I had bled a bit more than what I usually get. I have been feeling a bit sick lately as well. What could this mean???