Has anyone experienced this ?!

Dakota

So I had my last ‘period’ about 2 weeks ago , it only lasted 3 days and was pretty much just spotting .. now I’ve found that I’ve had minor cramps and I am starting to gain a darker ring around my Areola (breasts are not sore). Kicker is I have been trying to conceive now for 2 years . Am I going crazy or could I be pregnant this soon after what I thought was a period? Has anyone had a similar situation?