Aw mama, tummy pain kahit after pooping is pretty common sa 7 months, your baby's taking up so much space na that everything's getting squeezed, so sometimes parang may naiwan talaga or it's just gas and cramping from constipation na. Good thing baby's moving normally at wala kang discharge, pero if the pain keeps bugging you or gets worse, I'd really suggest checking with your OB just to be safe, kasi pregnancy pain can be tricky. A few of my mum friends experienced similar cramping sa third trimester and it turned out to be Braxton-Hicks or just digestive stuff, but your doctor can confirm, doesn't hurt to ask, especially pag persistent na! Hang in there, mama!