Morning after pill

Eunice

So this month I had sex and took ella one literally minutes after.. 4 days later the side effects kicked in, sore boobs,headaches,cramps etc

On the 5th day I couldn't resist and had sex again but this time no ejaculation inside, however I was too worried so u took Ella one again..

Now I'm 3 days late n kind of worried I read Ella one delays periods but I can't take this anxiety

Can a pregnancy detect accurately on the 3rd missed period day?