I'm not a doctor, but I can try to provide you with some general information about pregnancy and emergency contraception. Keep in mind that you should always consult a healthcare professional for accurate advice tailored to your specific situation.
The risk of getting pregnant from the situation you described seems low, but it's not impossible. Pregnancy occurs when sperm fertilizes an egg, and sperm can sometimes be present in pre-ejaculate (precum). However, the chances of pregnancy from precum are typically much lower than from ejaculate.
Plan B (levonorgestrel) is an emergency contraceptive that can be taken within 72 hours (3 days) of unprotected sex to help prevent pregnancy. The sooner you take it, the more effective it is. If it's still within the 72-hour window, you may consider taking Plan B. There are also other types of emergency contraception, like ella (ulipristal acetate), which can be taken within 120 hours (5 days) of unprotected sex, but it requires a prescription.
The cost of Plan B and its generic versions can vary depending on where you live and where you purchase it. Some pharmacies and clinics may offer discounts or assistance programs to help make it more affordable. You could call your local pharmacy to inquire about the cost and availability.
It's important to remember that emergency contraception should not be used as a regular form of birth control, and it's less effective than other methods like condoms or hormonal contraception.
If you're concerned about your situation or need more guidance, it's best to consult a healthcare professional, such as your doctor, for personalized advice. They can help you determine your risk of pregnancy and discuss your options for contraception moving forward.