'Sister Wives' Season 5 got us feel the tension as the family had some relationship issues concerning the coming of another member in the family-and we hoped that they would be able to work it out as a family, reported Enstarz. However, this issue seems to be still on the table and its effect is still felt.

This truth about this issue has been very elusive as none of the family members are willing to say much about it: they neither deny nor confirm the rumors that Robyn was actually pregnant with the 18^th child of the family. We last heard about this issue on July 27 interview where Christine walked out when the topic was brought up about Robyn and Kody having another baby, as reported by Hollywood Life.

It has been a few months since then but obviously the issue is far from over. Kody's third and fourth wives are still having some distance between them.

Robyn's only son Solomon has turned three last October 26 and both his parents were quick to announce this on Twitter and lavished their son with a lot of affections.

"Happy 3rd birthday to our baby boy Solomon! Where does the time go? He is such a fun blessing!" Robyn tweeted alongside a photo of her son. Kody then repeated Robyn's tweet and added "Call him Mr. Busy!"

The rest of the sister wives didn't seem to share the excitement; however Meri and Janelle at least managed to retweet Robyn's message. On the other hand, Christine did no participation at all. What she did was focus on sharing a picture of her husband Kody together with their youngest child Truely in her Halloween costume, Enstarz reported.

This led to speculations that Christine is jealous of the fact that Kody is trying to focus on having more children with Robyn instead of her. This on-going drama might have an impact on the family's show.

So far, Kody's children with each of his wives include daughter Mariah (with Meri); sons Logan, Hunter, Garrison and Gabriel and daughters Madison and Savanah (with Janelle); daughters Aspyn, Mykelti, Gwendlyn, Ysabel and Truely and son Paedon (with Christine); and Solomon (with Robyn). Kody also adopted Robyn's children from a previous marriage, son Dayton and daughters Aurora and Breanna, Enstarz listed.

The newest season of Sister Wives is expected to air next year although the premiere is still not known as of now.