Hello, it's the middle of week 37. Since this morning, my stomach is…

Hello, it's the middle of week 37. Since this morning, my stomach is getting smaller and I have pain like during my period, but the interval between them is irregular, sometimes 10 minutes, sometimes 7 minutes, etc. A small increase in pain noticed only after cleaning the house, but the pain is bearable. Are these false contractions? The plug came out at 33 weeks then I was hospitalized.