10 days late..

Now 10 days late on period and last time I started was December 30th. It's now Feburary 2nd almost feburary 3rd and still no period or anything. I'm worried because i thought i had a miscarriage the other day. So its been weighing on my mind.. I bled for under 20 minuted of like clotty stuff and alot of cramping and still cramping and was cramping before aswell and it randomly stopped and then my pregnancy test came up as negative when it was positive before it happened....me and my fiance have just gotten a job together today and start tomorrow at 6 am in the morning. And my health department checkup + pregnancy test is on Monday, 2 pm. And I'm hoping I can make it. Theyre very judgemental on pregnancy, and its kind of sickening, buts its what i got. I'm going to be bending alot but heard its okay. I'm wondering if this is okay to do while possibly pregnant in the early stages? We'll be polishing large loud trucks. I wont be climbing but just crouching to the ground and plolishing things like the wheels, because we need the extra money which is why i got it to with him for a temporary job for us just for now. I hope thats okay. Idk if loud trucks and stuff and saws and walking alot anf crouching/bending is okay so I'm wondering. I really have been hoping for pregnancy. Its way harder than it looks to TTC 😔 im starting to lose hope..