Plan B

I took a take action pill and i keep seeing reviews of it says that if you’re over 170 it may not work but i weigh 178, and i also see a lot of reviews saying it works.. i’m trying so hard to worry. i took it right after i had unprotected sex. and this was all last night around 8:30ish, and i’m not fertile right now based on what my eve app says. the only side effect i have is a headache. what should i do !!?