I literally weighed myself and Iv gained 6.61 pounds (3kg) and I’m only 5 weeks!!! Is this even normal? Iv changed my…

I literally weighed myself and Iv gained 6.61 pounds (3kg) and I’m only 5 weeks!!! Is this even normal? Iv changed my diet and have included fruit veg and meat! Cut down on junk what the hell!! Has this happened to anyone??