Spotting

Caylee
So we are new at ttc and it sucks because my first one came not on purpose but this one we are having difficulties. 
We've been trying for about five months now which seems like it isn't that long. This time I starting spotting around seven days before my period was suppose to start. I thought implantation bleeding? I spotted for six days after that and then Stopped. A day later I bled hard for three days. Maybe period? 
Anyone have any advice or something like this occur?