Early labor???

Samantha • Married to the love of my life. Healthy 1st baby (boy) 10/07/14 after a long road to pregnancy. Couldn`t be happier!!!!
So the past three days I have been experiencing a lot more pressure
​In my hips and back from baby. I have also been having a lot more Braxton hicks contractions and the odd cramp (menstral like). I have also been going to the bathroom a lot more! I have spent my entire evening nesting too even though I was super tired. Lol. I saw my doctor today and she has said that my baby boy is completely out of room (I am petite and baby is large!). She has always said she doubts I would make it to 40 weeks because of a number of factors but told me today to get myself prepared for his arrival as if I went into labor now they wouldn't try and stop it. I am 35 weeks 3 days right now. I'm wondering if anyone else is experiencing these symptoms at this stage?? Also has anyone gone into labor early with symptoms like this?? Thank you!