I had sex about 11 days ago protected and on birth control. Woke up today with a slight metallic taste in my mouth. Pregnant? Condom didn't break

Misinformed? A slight metallic taste in the mouth is not and has never been a sign of early pregnancy. To get pregnant you must have an egg and you must have sperm. You have neither. Why would you even think for a second that pregnancy is possible in this scenario?