I am currently 21 weeks and 1 day pregnant with a little boy. He is very very active. My husband was able to feel him at week 18 and we have been able to see him kicking for over a week. My placenta lies near the back so he is right near the front. I have been having 6-10 BH contractions a day, usually spanned apart by 2 hours each. They are not painful and last no more than 45 seconds, my OB said no need to worry. I am still excercising and do not have them when running or lifting weights, usually just at random times. Has anyone else experienced this? I am very concerned about preterm labor.