So I found out I was pregnant today which would put me at 4w4d. Yesterday, thinking I was not going to be pregnant I did a pretty intense cardio workout which involved jumping. I did do like 3 or 4 hard jumps up and down on a hard floor. Now I'm paranoid that I could have done some damage. Am I freaking out for no reason? Could this cause a miscarriage? I had an early one before so now I'm worried.