The Teen Mom franchise has introduced us to some pretty sleazy baby daddies over the years.

And while Javi Marroquin may never be on par with David Eason or Adam Lind, he seems desperate to prove that he's capable of truly sinister behavior.

As you may have heard, Javi's fiancee, Lauren Comeau, welcomed her first child last week.

And the timing of the birth has raised some interesting questions -- and a few accusations -- regarding Marroquin's recent romantic past.

Take a look:

1. The Happy Couple

Javi marroquin baby
These days, Javi and Lauren are living out a fantasy of domestic bliss with a house in the suburbs and a new baby boy.

2. Playing House?

Javi and comeau
But is Javi really ready to settle down this time? Or will this be another failed attempt from Kailyn Lowry's ex-husband?

3. Javi the Player

Javier marroquin
After all, within weeks of when Lauren got pregnant, Javi had been involved with two of his exes.

4. Overlap?

Lauren comeau with javi m
The question is, was he sleeping with anyone else at the time that he got Lauren pregnant?

5. Bri on the Case

Briana dejesus photograph
Briana, for one, seems certain that Javi was sleeping around on Lauren while she was carrying his child.

6. The Timeline

Javi marroquin and briana dejesus
Bri's got a compelling case, but we decided to break her claims down to try and determine just how worried Lauren should be about her man's wandering eye.
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