No not necessarily
It is possible that: you only have one baby, not two; one baby is hiding the other; the two heartbeats are synchronized so you only hear one.
Because two different parts have to contract, one after the other, to produce a pulse. The first to contract are the atria at the top of the heart, and then the ventricles below that do the main pumping.
One way valves prevent backwash between heartbeats.
Depends how fit you are.
Anything between 120-160 is considered normal.
I'm pretty sure you can't tell the sex of unborn babies by their heartbeats...
If you meant in heartbeats yes. A bird's heartbeats in one minute include 150 times in 15 seconds.
It is usually the number of heartbeats in one minute.
Lyrics to Heartbeat by The Knife can be found on many websites. Letssingit, metrolyrics, songmeanings, and rapgenius are just a few sites one can find these lyrics at.
When your stomach wambles (and wambling is when your stomach growls) is just means that the stomach is expanding. There is absolutely nothing wrong. You just ate a little more than normal and your stomach is expanding. Either that, or you are just very hungry.
Well, first you have to make two adult Sims that are in love to relax in a bed together. Then, you make one click the other and choose Try For Baby. If you wait, you might hear a sound kind of like a lullaby. If you do hear that sound that means the woman is pregnant. If you dont, then usually, the woman is not pregnant.
While you are pregnant you do not have periods at all.