mataas ang heart rate

Ask ko lng mga mommies..may nkaexperience n rin b d2 on their pregnancy na masyado mataas kesa normal yung heart rate ni baby? Im on my 9th week nung nagpatransV den sa result is 183 yung heart rate ni baby w/c is ndi daw normal sabi ng OB ko.dpat daw nsa 120-160 lng..yun daw ang normal.pg masyado mababa or mataas daw,my possibility daw n mawala ang baby ko?.. Hopefully & praying po magnormalize n yung heart rate ni baby next check up ko..anyone po na nkaexperience ng ganto? Pls give me some hope mommies.