2nd pregnancy swelling

Brittney • I`m 32 years old and have a almost 2 year old son (bday 9/3) and pregnant with our little girl (due 10/4)
Hello!
With my first I didn't start swelling until my 3rd trimester...I'm 22 weeks and my feet are a little swollen at the end of the day. I also "popped" sooner so I'm bigger (weight gain is within good limits and not any more than last time). 
Is this normal?? I guess EVERYTHING has happened sooner this time but still. I have a whole summer to go!