Halle Berry is pregnant with her second child … TMZ has  learned.’

Sources connected with the actress and her fiance, Olivier Martinez, tell TMZ … Halle is around 3 months  pregnant — based on the pics and some other facts we know … she may be a  little further along.

What’s more … they know the sex.  It’s a  boy.

This could explain why Halle and Olivier were so upset when  paparazzi got too close to her earlier this week at LAX while she was carrying  soon-to-be big sister Nahla, who is 5.

It’s definitely worth noting …  Halle is 46, and Olivier is 47.

Check  out this pic of Halle at the Oscars (above) in late February.  A  source connected with the actress tells us Halle was feeling sick and was  complaining she had gained a little weight.  We’re told days later she  found out she was pregnant.

Read more: TMZ