24 wks for me. Dont worry
25 weeks I felt regular movement; then he didn't stop.
I was told not to worry if you don't feel regular movement until you are 28 weeks.
im barely 22 weeks and finally feel her more regularly and stronger, be patient i felt the same way :)
You should start feeling your baby soon don't feel bad once they start kicking trust me they don't stop :)
It also depends on were the placenta is. If it's attached anteriorly it will be long till you feel baby move and you will feel it less fequently.
I did not feel my first regularly till 20 and know people who have not felt anything till 24 and all was well. I would not worry:-)