Is it safer to use 2 condoms to prevent pregnancy?

No, it is not better to use two condoms. In fact, two condoms can cause friction between the condoms and make it easier for the condoms to break. Using two condoms, therefore, can increase the risk of pregnancy. Do not use two condoms! This includes using two external condoms (ones that go on the penis), or using an internal and external condom together (an internal condom is one that goes inside the vagina/anus).