Inner thigh / groin pain TTC - missed period!

I plan to go see the doc soon. I've had a regular period but this month I missed it and am 5 days late. All negatives. Had cramps/uncomfortable during period days. Anyone had or have inner thigh pain (assuming this may be related to a cyst and sensitivity)?  Anyone had implantation cramps around 12 dpo?  Hoping for a positive and nothing serious.