Fans of TLC's Sister Wives may need to wait even longer to find out answers to some of the biggest questions they have about the famous polygamist family.

Is Robyn Pregnant?

The hit show, which bowed the first half of its fifth season with a "tell-all" episode on July 27, may not be returning to TLC's schedule for a few more months-meaning fans will need to wait even longer to find out answers to their most burning questions-including whether or not first wife Meri is planning to leave the family, and if fourth wife Robyn is pregnant.

While Meri semi-addressed the rumors she may be planning to leave the family due to unhappiness in the reunion and denied any such feelings existed, Robyn refused to answer questions about being pregnant with her second child by husband Kody-the 18th child in the family overall.

Kody Hints That A New Baby Is On The Way?

Since then, Kody has potentially dropped hints on his Twitter page that he and Robyn could be expecting again-but there have been no outright confirmations that baby number 18 is on the way.

During the season finale episode on July 20, he tweeted his fourth wife, asking her if they should have another baby together, after expressing joy over how adorable their son is.

"Super Sol! Thanks @LuvgvsUwngs A cute little boy! Only the 3rd shy child of 17...Should we have another? #SisterWives," he wrote.

One week later, during the tell-all, he tweeted again, this time saying as a whole, the family was well suited to pregnancy test commercials.

"Nothing to say yet except: We are a great show for a First Response pregnancy test add! Uh...right?" he wrote at the time.

Since then however, Kody has remained silent about any potential hints that he is about to become a father-and hasn't genuinely tweeted out any thoughts since the tell-all episode, focusing instead on re-tweeting other people's photos and news.

Similarly, Robyn has been relatively inactive on her own Twitter account, and has not addressed any of the speculation she could be pregnant once again.

Their refusal to answer questions and relatively small amount of activity on social media could be an attempt to hide a potential pregnancy-and keep viewers guessing, until the show returns (though it may not appear on TLC again until late 2014 or early 2015). A later return for the show could also give the family plenty of time to capture the potential pregnancy for the cameras-and certainly further increase ratings upon a return.

If Robyn is expecting another child with Kody, it would officially be the 18th overall child in the Brown family. The potential future baby's siblings include: Logan (Kody's son with second wife Janelle), Aspyn (Kody's daughter with third wife Christine), Mariah (Kody's daughter with first wife Meri), Madison (Kody's daughter with Janelle), Mykelti (Kody's daughter with Christine), Hunter (Kody's son with Janelle), Garrison (Kody's son with Janelle), Paedon (Kody's son with Christine), Dayton (Robyn's son with a previous husband), Gabriel (Kody's son with Janelle), Gwendlyn (Kody's daughter with Christine), Aurora (Robyn's daughter with a previous husband), Ysabel (Kody's daughter with Christine), Breanna (Robyn's daughter with a previous husband), Savanah (Kody's daughter with Janelle), Truely (Kody's daughter with Christine) and Solomon (Kody's son with Robyn).

Tags: Sister Wives TLC Reality TV