How to tell


Hello, my name is Elexis and from CO. And my question is, i just the nexplanon removed about 6 days ago and they told me id be extremely fertile. I did however have this dark brown almost black discharge as soon as they removed it. None the less me and my bf started trying. The bleeding stopped after 3 days but im still cramping. I feel bloated and kinda just meh... is it possible these are early symptoms or is it still to soon??