Period or pregnancy??

Good morning all,

I just need some advice or a miracle as I'm experiencing something unusual. I'm now CD42 when I'm usually CD29 (CD32 is the latest day I've started my period) I've done two tests. One last Saturday which was negative and one on Tuesday which had a very faint line. I have pictures which aren't very clear.

I don't know if it's positive as I'm now 12 days late for my period but I've had some mild cramping (like period cramps) off and on since last weekend but no bleeding or any PMS like I usually go through. I've been exhausted and that's it but not sure if its from my period coming or work related.

I need to do another test but I'm so scared! Been trying to conceive for over 2 years now and had no luck as I have PCOS and. I get nervous doing tests as I'm so use to negatives but what are the chances of being positive? Do you get mild cramps that feel like period cramps off and on? Or could I just have a false positive and my period coming dramatically late?