How common are twins?

I've heard that more people have been having twins/triplets since a recent update (I wouldn't know, I just got the Sims 4 a few days ago), but I had two sets of twins. I'd say they're pretty common as of late.

I've never had twins

Okay .-. this twins thing really has gotten out of hand, at least in my opinion. EVERYTIME i have a child they are twins, and its really annoying. Both of the females in my current family gave birth, raising my total sets of twins to 5

Hello Fellow Simmers,The New December patch has a bug as most of you may be experiencing that all households and all pregnant sims have twins this is a bug just to confirm it I spoke to an advisor and they told me that The EA Specialists team is very aware and are working on it.So Please wait patiently. Happy Simming!

I guess it was a bug. My first ever Sim Karlee gave birth to two sets of twins. It wasn't until the house got full that I finally only saw one single birth, which her daughter Rachael's son Dylan.

apparently really common for me cause all I've gotten are twins

WAY, WAY, WAY, WAY, WAY Too common. It went like this

Mona: First birth Twin Boys, Second Birth Twin Boys, Third birth, Twin boys
I got annoyed of all the Twin boys so I made a different family

Chelsea: First Birth Twin Girls. I was ok with this since it was the first time any of my sims had had a girl/girls

The day I get a single Baby on The Sims 4, I will be happy

i think is really common. My first sim had twins

At the moment twins in my game are 99% chance of twins 1% triplets lol x

I personally have not had the privilege of twins or triplets yet on the Sims 4. But as far as the Sims 3 went I had them all the time. It was so stressful I usually ended up divorcing my husband/boyfriend/father of the children, making him move out and sending the twins with him. Usually leaving me with a massive toddler free crying house :)