Constipation 25 weeks

So I’ve not been able to go since last Monday also that’s the day I had my gallbladder removal i only took 2 pain meds afterwards. what can I do I’ve tried miralax and colace and nothing is working miralax helped a little but only a very small amount and I’m taking fiber one brownies as well .I have to take 2 iron supplements a day and my prenatals. Before my gallbladder was taken out I just had diarrhea almost every time I ate so I was fine then. Idk what’s wrong with me now.