Yes, it is possible to get pregnant from pre-ejaculatory fluid (pre-cum), as it can contain active sperm, though the risk is relatively low. Please try not to worry, as emergency contraception is highly effective when taken quickly. You have two main options: Levonorgestrel, which is most effective when taken within 72 hours (3 days) of sex and is available over-the-counter, or Ulipristal acetate, which is effective for up to 120 hours (5 days) but usually requires a prescription. Both options work best the sooner you take them. I recommend consulting a local pharmacist or doctor to help you choose the best option.