24+2 week pregnant not feeling much of baby's movement. Maybe 1 or 2 kicks in entire day. Placenta anterior, and it's my first baby. Really worried?

Movement. Because you have an anterior placenta, you often times don't feel movement even when heard on a fetal monitor or seen on ultrasound. You can always call your OB provider and see if he/she has an answering service. He/she may want you to get some fetal monitoring even though what you describe is fairly common.