Pregnant but don’t know how far along

I’ve just found out I’m pregnant. My last period was on the 5th of April. I took a morning after pill on the 18th of April after a mishap and had a bleed that lasted 3 days from the 24th of April. Is it likely that I was already pregnant before taking MAP (we did have unprotected a few times) or would the bleed be classed as a period? I started the injection on the 1st of May so wouldn’t have been much fertile time after the bleed on the 24th. How far along do you think I am?