Unsure of what is happening! Advice please lady's

Katie
I'm not sure if this has to do with it but Iv been feeling poorly flu like for about a week now. I'm on the 2 week waiting game to do a preg test.
Iv had a lot of twitching and cramps in my left side which I don't normally get 
I just went to the toilet and passed I would say quiet a bit of brown-pink discharge.. 
I had a chemical pregnancy 2 months ago and wonder if maybe this is to do with it. 
Maybe I'm pregnant or maybe I have an infection. 
What do you lady's think?