i remember the first sign that i WAS pregnant was cramping on and off for days. i was so sure AF was on its way. it never showed up. i took a test and got a positive. Those cramps continued for a week or 2 after the positive test.
i guess it was the pregnancy taking hold inside the uterus. I now have a beautiful 3 month old baby girl. so those on and off cramps were the only indication that something was different. i had no other symptoms, so i hope you are the same. No period is a good sign too so keep hoping! good luck