15 days late

Hey y’all so I’m 15 days late from my period I had my last period last month and it lasted 4 days which is normal for me and my man did it a couple of times this month and I’m scared what to do right now I had my child 3 1/2 years ago after having 4 miscarriages should I take a pregnancy test or go to the doctor and get a blood test because they didn’t proscribe me birth control because my history with cyst .?.