Do you think i could be pregnant? I know these posts are ANNOYING but hear me out lol :)

OK so I was ejaculated in about 42 days ago it was 2 days after my period. so i figured it was not the most absolute risky thing to do as i didnt think i would be in the fertile window. me and my husband forgot to bring condoms and the nearest place to get condoms (or plan b) was an hour away and we were in this town for a family holiday and very busy and in the moment and didnt pull out. We've never done anything like that in 6 years of being together. Anyway, my periods are sometimes a little wonky.. in the past 1 year i have had cycles be 42 days or 29 days apart. 2 and 3 years ago i had some cycles 50 or 60 days apart. My period was supposedly due about the 23 of july i think (ive been clicking late period so much on this app i cant really recall lol). I took a test this past sunday 7/31 and got a negative that would be 29 days since having the risky sex. This morning i took a test after 3 min recommended wait it said negative but then i looked back a little later and thought MAYBE i saw a positive? but it could be an evap line as ive never used this brand before and i HAVE seen an evap line myself with some piece of shit test i took last year when my period was "late"

How likely is it that you think im pregnant i tried to make an appointment with an obgyn but they dont have openings until october, should i just ask if they can get me in for a blood test or do they not do that... Lol sorry never been in this situation!