HELP ME

I'm sorry if this is TMI but I'm having a really hard time going to the bathroom and I could really use any suggestions anyone may have .. I don't go for weeks at a time - I get extremely sick throwing up with headaches etc. They say pregnancy alone can cause some constipation but I'm on medication that backs ya up also, double whammy 😩😭 I've been taking a laxative once a week to push the waste out but the pain and cramping hurts so bad plus i think my body is almost getting used to it, it isn't working as well. Does anyone know what i can do, take or eat daily that will help regulate my bowels?! This stuff is killing me, literally!