When do you start getting checked?

Kelsey • Mommy to a beautiful 5 year old little girl and handsome 3 year old little boy. Another sweet Baby boy coming in May!
I will be 33 weeks at my drs apt next week. I have been having A LOT of contractions (like 10intense contractions everyday). I know I'm not in labor and they are probably Braxton hicks. With my first two pregnancies I had early delivers (35-36 weeks) and began to dilate every earlier than that. My question is when does your dr start checking dilation? I want to ask to be checked this time just because of how many contractions I have had. Is it too early?