bit of a scare

so i went to the Dr. today for a normal checkup.. everything was going fine until my doctor couldn't find the heartbeat!!! it sort of freaked me out at first but i had a calm feeling about it. so he ordered a ultrasound and when i got there.. no trouble! baby was there, healthy and with a heart beat of 157 ! i am told that is pretty high... but yeah the baby is measuring right and everything! they just told me that i have an anterior placenta this time which just means basically that the placenta is closer to the top of the skin instead of being behind the baby... which is why he couldn't hear it! so yeah kinda scary but it turned out well!