Could i be pregnant

We have been trying to get pregnant and I should have started my period on the 16th. Well I didn't start on the 16th but I did on the 17th. But all its been is a very small amount of pink/clear mucus. Its just enough for just a panty liner. I haven't been feeling myself the past few weeks.I don't even hhave the signs and symptoms of my period a few days before like I usually do. Should I take a test or should I just wait till my "period" should be over.