Hello my last period was Februar y 10th and since Saturday I have been spotting thick brownish discharge is this normal. I'm 35 and have had 2 babies?

Not normal. need to see your Gyn provider for evaluation. List of causes is long. Sorry this was not more helpful. Best of luck. Dr. R.
Old menstrual blood. Sometimes a woman will not ovulate and then have only a brown discharge at the period time, in which case it may last 7-10 days and then should resolve. If not, consider infection or early pregnancy which can sometimes be associated with spotting.