I took a plan b pill yesterday can i have protected sex today (condom) ? it was my first time taking it so i don't know anything about it

Below: Here is the best information I could located on the internet about your question: To be most effective, Plan B One Step should be administered as soon as possible after unprotected sex and no later than 72 hours afterward. This really doesn’t mean that you can have sex any time you want over the next 72 hours and expect it to keep fighting off sperm. Taken as directed, Plan B is most likely to prevent egg fertilization and implantation ONCE. Planning to Have Sex Again? USE PROTECTION. If you have used the Plan B emergency contraceptive pill because you have had unprotected sex, you can only expect this pill to stop a pregnancy from occurring from that one sex act. If you plan to have sex again and you don’t want to become pregnant, then prepare yourself with condoms, birth control pills, an IUD, an injected contraceptive, a diaphragm or an implanted contraceptive device like an IUD or Norplant (levonorgestrel). Do NOT rely on the Plan B pill you took yesterday to keep on working tomorrow. Various reports indicate that someone who took Plan B on Monday had unprotected sex again on Friday and did not get pregnant. However, other reports have shown that those who took Plan B got pregnant anyway, and it is unknown as to whether it was emergency contraceptive failure at the initial act or whether it worked to prevent the first batch of sperm from fertilizing but a few days later another batch of sperm completed their mission.