At this point in pregnancy the baby is getting bigger so the kicks and movements do not feel the same. You will start feeling more waves instead of kicks like you were a couple weeks ago. If you are worried about little movement, count how often the baby moves in 2 hours. If you feel 10 movements, you do not need to worry. If it is less than 10 movements in 2 hours, you should contact your doctor or midwife because that could be a sign of fetal distress and it never hurts to be checked out to rule out any complications.
Are you saying you haven't felt the kicks as much the last two days? If you have noticed a decrease in movement, you need to go ahead and give your doctor/midwife a call to have things checked out.
I hope all is well- let us know how you and baby are doing!