Am I pregnant?

So today is day 7 that I’m late. I took a pregnancy test day 4 and it came back negative. Can i still be pregnant? Should I take another test? I’ve honestly never been late but I doubt I am pregnant since I took the emergency contraceptive “ take action “ 24 hrs prior to the time I had sex. Could i still be pregnant? I heard a lot of bad reviews about that specific emergency contraceptive. like ALOT. So just wondering should I be worried?