Help Wanted

I know implantation happens from 6-12 days. So my question is, can it be harder for me to get pregnant if I only have 10 days before my next af? I felt some cramping a few days before but haven’t had any signs of anything which in the previous months I had more symptoms this far in. I know I’m probably over thinking this wayyy to much and I apologize but this came a-crossed my mind and I can’t stop thinking about now.