Just being paranoid?

Hi all

This is my first time posting and I just I want to know if anyone has had this happen to them before or if I am just over thinking things/being paranoid.

I have a fairly regular cycle around about 25-26 days I am currently on day 17 of my cycle and about 6-7 dpo. My partner works away for three weeks of the month but always seems to be home around my fertile week and we have sex at least once a day while he is home. Beside my boobs being only a tad sore this afternoon when I wiped there was a tiny bit of brownish discharge only when I wiped so not a lot. I didn't really think much of it until I had to pee again and wiped and there was some more slightly lighter brown/pinkish discharge and I now have some super slight cramping. Has anyone experienced this before? I feel like it's still too early to be period bleeding. Any thoughts are welcome! :)