Braxton Hicks/preterm labour?

Elizabeth
Hi all I'm 15 weeks and have been experiencing contractions since December 7th. I wasn't keeping track of how many I was having or how far apart they were I just started to keep track today at 4:30pm. I've had contractions throughout the day today but decided it's time to keep track. So today at 4:30 lasted for 1 to 2 mins and again at 5pm lasted 2 mins it's 5:30 now haven't had another yet so I'm wondering is this Braxton Hicks? If so they are really painful for me. Thanks in advance for answering my post.