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She's constantly plagued by pregnancy rumors, but we're seriously starting to wonder if she's got another bun in the oven!

Jennifer Garner ran errands with her children in Brentwood today, and we couldn't help but notice that the actress appears to have put on a little weight, but only in her midsection! Could baby #4 be on the way?

Reports surfaced earlier this month claiming that the mother-of-three declined alcohol at pal Jimmy Kimmel's wedding and was telling pals she's expecting another child with hubby Ben Affleck.

We know motherhood is her favorite role of all, so we guess we will have to wait and see!