35w Today just started to cramp

Kateri, 🌈 baby, proud wife 🇺🇸

Hello ladies, I am 35w today and I’ve been having about 6 contractions a day for the past week or so. This is my 4th baby, every one of my pregnancy has been very different.

About 20min ago I started to feel period like cramps. They last about 30-40 seconds they come back after a minute or two.

Would this be contractions or BH?