The beginning of the acquisition of phonological contrasts is subject to various discussions according to the perspectives considered by the researchers, especially when dealing with production. Two major views are opposed: the first one (Jakobson, 1941), states that phonological contrasts emerge only with the beginning of first words, when sounds bear a distinctive value associated with meaning while babbling would correspond to a phonetic exploration. A second point of view (Vihman et al, 1985) asserts a continuity of phonological structure between babbling and first words: these productions share overall sound inventories, phonotactic and prosodic features, and seem to be language-specific (Boysson-Bardies et al., 1984; Boysson-Bardies & Vihman, 1991). The goal of our study is to test whether consonantal contrasts can be found in the babbling productions. The phonological perspective taken here does not rely on distinctiveness, thus words, to establish contrasts, but rather on the criterion of distribution (Bloch, 1948): contrastive sounds appear in the same distribution. If phonological contrasts emerge during the babbling period, then for example in French, we should find the generalization of place of articulation or voicing contrasts in every possible distribution. On the contrary, if infant productions are constrained by articulatory abilities (Davis & MacNeilage, 1990), then we expect to find a production bias in favour of the following complementary distributions: (1) Voiced consonants would occur in intervocalic positions; voiceless consonants would occur word-finally. (2) Labial consonants would occur word-initially. Longitudinal data from 22 monolingual French-speaking children were analysed. Each child was recorded every month from the age of 8 to 14 month-old and their production was phonetically transcribed. Each consonant was annotated for their syllabic position and the position of the syllable in the utterance. Chi-square tests were conducted in order to determine the independence between each analysed feature and its distribution, comparing observed vs. expected frequencies. First results show that voicing depends on the position: voiceless consonants occur more than expected in final position while voiced consonants occur more than expected word-medially. As for place of articulation, labials occur more often word-initially than expected. Analysis of theses contrasts with respect to individual variation and age will be discussed. Our preliminary findings seem to show that, while phonetic inventories emerge during the babbling period, phonological contrasts have not yet emerged. Babbling appears to be, foremost, the stage for growing articulatory abilities.