HippAp 22(32) :ܥܘ̈ܠܐ ܡ݁ܢ ܕܟܪ̈ܐ ܒܓܒܐ ܕܝܡܝܢܐ ܝܬܝܪܐܝܬ ܡܬܒ݁ܛܢܝܢ ܢܩܒ̈ܬܐ ܕܝܢ ܒܓܒܐ ܕܣܡܠܐ‏ : male fetuses are more often located in the right side of the belly, females on the left side
See the entire entry for bṭn vb. to be pregnant