Layla was pregnant with triplets.

Tom has three brothers who are triplets.

The repeated triplets are the most prominent motif in that movement of the symphony.

Soon I will have double the number of nieces and nephews I have at the moment, as my sister-in-law is pregnant with triplets.

Mary is pregnant with triplets.

I can't believe it! She said she is having triplets!

I actually had no idea she was a triplet.

She had triplets.

I actually had no idea he was a triplet.

I am a triplet born on New Year's Eve.