dd - I'm pretty sure I read somewhere on the forum of someones baby having a heartrate anywhere between 127 and 179 over the period of her pregnancy and her carers didn't blink an eye so I wouldn't be panicking about it it seems it can easily be the case. I have certainly heard of low 130s to high 160s quite regularly. Make sure to ask your OB if it does concern you - to ease your mind but I don't think it's an issue really