Last week's Game of Thrones Season 7 episode left us with many questions. Is Cersei () really pregnant? And with Daenerys () hook up with Jon ()?

Fans were shocked when Cersei told Jaime () that she is pregnant with his baby. But was Cersei telling the truth? After all, she has been highly manipulative in the past.

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This is just one question we want answered right now. Here are five burning questions ahead of Sunday's GoT episode.

WARNING: SPOILERS BELOW

1. Is Cersei Really Pregnant With Jaime's Baby?

Cersei And Jaime Cersei told Jaime she was pregnant with his child, but is she just lying to manipulate him?

Cersei can probably sense that Jaime is starting to break away from her. And she doesn't want him to ally with Tyrion (). So some fans believe she made up the pregnancy news to keep Jaime on her side.

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Another sign Cersei may be lying about her pregnancy? Maggie the Frog's famous prophecy, which so far has proven accurate, claimed she would only have three children, not four. But others think that this prophecy means Cersei will die before giving birth.

2. Will Jon Snow And Daenerys Hook Up?

Jon and Daenerys Jon and Daenerys have developed incredible chemistry.

Jon and Daenerys continued to grow closer on last week's GoT. They were so sweet together with Dany's dragon after she returned from the battle. And many think a hookup is inevitable, even though they are related (that didn't stop Jaime and Cersei, after all).

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Game of Thrones writer Dave Hill recently spoke to EW.com about Jon and Daenerys' special bond. "They’re both, in a way, cut from the same cloth — they’re both idealists," he said. "They both care about the people they govern, which makes them unique in Westeros. And they both feel the same weight of the crown. All that that draws her to him. He’s good hearted and would want to ‘break the wheel’ with her.”

3. Is Sansa Going To Betray Arya And Jon?

Sansa And Arya Could Sansa turn against her sister Arya?

Tension between Arya (Maisie Williams) and Sansa (Sophie Turner) has been building since their reunion.  And that has led to theories that Sansa will ultimately go behind her sister's back.

Things may get worse now that Arya has found Sansa's note. Sansa wrote the note back in Season 1 urging Robb to pledge loyalty to Joffrey.

Spoilers say that Sansa and Arya will have a confrontation in Episode 6 over the note. Arya will reportedly even threaten Sansa with Bran's () knife.

4. Who Will Arya Kill In Season 7?

Arya On Game Of Thrones Season 7 Arya has been fairly successful with her kill list so far.

After Arya's massacre of House Frey at the start of this season, she still has some names left on her kill list. Since one of them is Cersei, some believe she will be the one who ultimately cause Cersei's demise.

5. How Will Jon Discover Who His Real Parents Are?

Jon Snow Meeting Daenerys Bran may hold the key to Jon finding out the truth about his parents.

Many fans think Jon will find out the truth about his parentage before the Game of Thrones Season 7 finale. And that will be an especially big deal now that we know he is a legit Targaryen. (Last week's episode strongly hinted that Lyanna Stark and Rhaegar Targaryen were actually married before Lyanna's death.)

Once Jon learns who is real parents are, he may try even harder to stake his claim to the Iron Throne. And many think Bran will ultimately tell the news to Sansa, and that she will reveal it to Jon.

Do you think Cersei is really pregnant? Let us know your take in the comments section below!