A little worried

Hey ladies. So I’m 6 weeks pregnant today and I’ve been having some very light pinkish brown spotting. I don’t even know if it’s considered spotting or discharge but it’s making me worried. The past few days all day morning sickness has reared it’s ugly head too. Looking for some reassurance or wisdom. I’ve had three children so I’m familiar with pregnancy but have never had this happen. Being older (37) I guess I’m worried that something will happen. Thanks!