Unplanned unprotected sex and plan B

So my boyfriend and I had sex today, and as always we only used a condom - I’m not on the pill or anything else like that. Usually I wouldn’t be worried about getting pregnant BUT: Not only am I in my fertile window right now, the condom also fell off during sex, and it was very obvious when we stopped that the condom had not done it’s job at all..

Since I’m not using any other form of birth control, we took this very seriously and went straight to the pharmacy to get a “day-after” pill. We spoke to the pharmacist and decided on the most expensive, most effective one since I am in my fertile window right now. I took the pill as soon as I got home (about 1.5 hours after the sex, and you can take the pill up to 5 days after).

Now I just really want to know: Is there anything more I could possibly do to avoid getting pregnant? I am in NO way ready to have a baby at this age or this point in my life, and I’d do anything to avoid having an abortion..