Please don't wean yet, Frans, there's no need to wean early. What do you hope will be achieved by weaning? As VictorianSqualor neatly says in other threads about early weaning and 'babies showing all the signs':
"The research behind weaning shows that when born baby's stomachs are permeable, to allow them to absorb the milk easier to digest. Only milk should be entering the stomach when it is permeable to avoid possible allergies or stomach/digestion problems in later life.
Somewhere between 17-26 weeks the stomach becomes unpermeable, and 'seals' which is when the baby is physically internally ready for solids. Unfortunately we can't tell which baby is ready at 17 weeks, and which is ready at 26! That's why they say to wait.
It has been suggested though, that once your baby can sit unaided, grab food, put it in their mouth, chew and swallow that they are likely to be ready internally, until then nature wouldn't allow us to be developmentally ready and we would fail at some point in the process."
Have a look at kellymom.com too for extra info.