When to take pregnancy test????

Ok ladies I ovulated on the third and af is due on the 19th. I been having alot of symptoms. Fatigue, body swelling, headaches, alot of bloating and heartburn, mood swinging like crazy, constipation and clear mucus. My boobs doubled in size to wear they keep popping out my bras that fit last week. I also have clear discharge and my cervixs seems low. Im praying I get a bfp but not sure when to test