Need help PLS..

So I recently had a miscarrige (end of June, natural miscarriage.)

My partner works FIFO so it's really hard to get a the chance to DTD but we did on 13th and 14th July.

I've literally just finished what I thought was my first AF post miscarriage but it was extremely abnormal meaning very very very light compared to my past AFs... as in my entire 6 days of flow would equal maybe 1 day of my "normal AF" I've been tired, moody, nauseous, constant headache but I put all of this down to having a bad head cold recently..

But my dog has been very very strange like he was last time I was pregnant as in he doesn't listen, he literally gets so horny that he humps EVERYTHING he can including trying to hump my 4 year old nephew 😱😱

So I did a test this AM, at lunch and just before.. the first two I basically waited till dye had run, didn't seen any obvious 2nd line so put them down and tonight's one I swear I seen a very very faint line so I looked at the other 2 and seen faint but definately there lines...

Is this even possible??

First 2 years but way out of the recommended time frame..

Next and most recent test within timeframe..

All 3 together.. Only bottom one I can definately say a line within time frame..