Ok so I finally got my pocket fetal doppler today in the mailbox..so excited! It is a lot more difficult than I thought it would be. I Will hear my heartbeat ranging 60 to 90. Then I can find the baby's heartbeat but in one spot it will be kinda low at first I wasn't sure if it was mine...it says between 110 to 140 ..It goes up and down. But then I Will find heartbeat around 150 to 160. This is very confusing. Anybody have experience with these?