What’s going on?

ok so i’ve been trying to figure out what’s going on here. My last period started around march 3rd, and lasted about a week. And on march 13/14 i had sex and we realized after that the condom had broken, so I told him not to worry about it, and that I would go get the morning after pill. I couldn’t get it the day after, so i got it the next day and took it. For the past week and a bit i’ve been feeling nauseous and exhausted for no particular reason, so I took a home pregnancy test this morning and it turned positive almost immediately… is it all of this possible, or could it be a false positive? help!