I'm 30 weeks & had diarrhea once last Saturday then now here we are a week and a day later & it happened again just like last weekend upset stomach all day & no change in my normal diet & I just got it once. I've had some more pressure lately & period like cramps also. I read that diarrhea in the third trimester is a sign of preterm labor or that labor is approaching within the next few weeks especially if accompanied by cramps & pressure?! 😩😷😳 is this true?