Is it stupid to take EC after successful protected condom sex?


My BF and I had sex and he used a condom correctly and pulled out. Before going at it again, he put a new one on to help me finish after he already came in the first one. I'm a super paranoid/anxious person and I'm wondering if even though the condom didn't break/tear/leak/ or slip off, if it's dumb to still use an emergency contraceptive pill? I also just got off my period about 2 days ago and I'm not ovulating just yet, but soon I am. I'm currently not on any form of BC yet, either.