Pete Davidson and his baby mama ex-girlfriend Elsie Hewitt have reached a co-parenting agreement a little over two months since their shock split. The 32-year-old comedian welcomed daughter Scottie Rose late last year in December with the model, 30. Following news of the breakup in May, Hewitt had taken to social media to claim she is raising their baby girl 'on my own.' Sources soon refuted the claims, telling the Daily Mail that Davidson 'covers all costs' related to their daughter. However, the pair will now continue 'working together' to raise their little one after coming to a 'joint agreement.' 'We are cooperatively coparenting our…