Braxton Hicks or contractions?

I’m a little over 36 weeks. Husband and I had sex around 8pm and I cramped for a little after but nothing uncomfortable.

It’s now 3am and I’ve been having what I assume are Braxton Hicks every 4-5 minutes. It doesn’t take my breath away but it’s also really uncomfortable to the point I can’t sleep. These feel more like period cramps/stomach tightening rather than just my stomach tightening.

What should I do?? This isn’t my first child but I was induced with my first so trying to figure out what’s real or not is new to me.