BSPEARSEXCLU091107_22.jpgBSPEARSEXCLU091107_18.jpgBritney Spears BSPEARSEXCLU091107_29.jpgBritney spent yesterday morning with her children, celebrating Jayden's 1st birthday at home. Carting the birthday boy around in a Gucci baby carrier, mother and son had some quality time together before Britney had to hand the boys off to Kevin.

Her afternoon was decidedly less blissful -- Britney spent the rest of the day in her attorney's office discussing her custody case against Kevin. Not exactly the best way to spend your youngest's 1st birthday!

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