Why does my 4 month baby cries (at times)when I make him to sleep?

sometimes baby can sense mother's near so baby cries for more attention or to get what he/she wants, and only from mother. my firstborn was like this. he only fussed and cried more when I carried him, but stopped when others carried him, unless he's definitely in discomfort. 😅 I felt exactly the same as you or even worse cos sometimes I'd cry when that happened. but I eventually got used to it and its all love 💗 don't give up! and rest assured your baby doesn't hate you. in fact, he might be doing this because he loves you the most!