Implantation bleeding

This is my first pregnancy and I’m almost 7 weeks. I’ve been having what I want to call light bleeding for 2 days. 90% of the time it’s light red/pink and only when I wipe however twice it has transferred onto my underwear and looked a lot more red (not as red as a period though but not far off) every time I wipe its their.

I’ve had no cramping.

Can any ladies give advice as I’m terrified to miscarry, I suffer with PCOS so I guess my chances of miscarriage are higher /: