Leg cramps? AF late.. Preg? Maybe?🙄

Officially 2 days late.. Took a test 29th in the AM and got a BFN so I wanted to wait a few more days to see if AF will show... So far no signs of her at alllllll, and I usually spot a day or two before she shows. Something I noticed yesterday and today besides fatigue and constipation is dull aches in my legs.. Like I've been working out or just went running. I can assure you that is not the case lol has anyone had this and later got a bfp?! Feel sore/cramps in my thighs and dull pains in calf muscles, so strangeeeee!!!!