Real contractions or Braxton hicks?

Onnilee • Adalynne Grace 09/11/2016 🎀💕👑 Tinsley Saylah Joy 04/24/2019 💜🌸👑 Evangeline Elizabeth due 04/02/2021
I'll be 35 weeks tomorrow. The other I went to the ER cause I was in a lot of pain (severe period like cramps) was told I was in labor (1 cm dilated and 30% effaced) so they gave me some shots and some pills to take home to slow down labor for two weeks. Nothing seems to be working. Now I'm having contractions again but not as painful as they were but instead of every 15 minutes apart they are every 5 minutes apart. My belly gets hard and my back feels like I'm on my period and my crotch feels very heavy.. My OB told me that if my Baby girl comes this week she will be fine cause she's measuring a week ahead. Any advice??