a year ago i have stepped on a short nail and it was not rusty. the nail went less than 1 cm into my heel sideways. i desinfected the heel where it went in and the place healed with no complications. i almost forgot about it but after a year of the nail accident i got pregnant. at about three weeks of pregnancy i started to notice that the place where i have stepped on a nail before has now hardened a little. it was not painful, just like a harder skin on a heel surface. i asked my doctor about it and he said its not a big deal and if i am not annoyed it can stay this way until i give birth. now i am twenty weeks into my pregnancy and during the last couple of months the spot under my heel started to be more annoying. its surface has expanded. its still like a hard skin on a surface and something painful inside. for the last two days i cannot use the heel of that foot. i try not to step on the painful spot on my heel as it hurts then. so i walk on my toes on that foot. my doctor is on vacation now. i try not to use any medication during my pregnancy. please advice.