You are 5 months pregnant.
First trimester:
1-4w: 1 month
5-8w: 2 months
9-13w: 3 months
Second trimester:
14-17w: 4 months
18-21w: 5 months
22-26w: 6 months
Third trimester:
27-30w: 7 months
31-35w: 8 months
36-40w: 9 months
You are 4 months and 3weeks