Working out how far along i am 😊

Just did a pregnancy test on Tuesday which came back positive I can't get in to my doctor's until Monday but I'm trying to work out how far along I would be I have a couple of different apps including glow for period tracking ones telling me 5 weeks 2 days and the others telling me 4weeks 2days, doesn't really bother me just wanting to know but the first day of my last period was 13 June and my cycles last 35 days so if someone could help work it out for me it's confusing me at the moment 😂