Poo’s

I really am at my wits end with my little girl doing poo’s. She’s had bowel issues for as long as I can remember and the doctor prescribed laxatives, we’ve been on and off these for the past 18 months & in the last 6 months we seem to have got into such a good routine with them. We’re also potty training and she’s nailed wee’s but poo’s seem to be taking time, up until a couple of weeks ago she was making really good progress but she suddenly doesn’t want to poo is holding them and telling me it hurts. We’ve put the laxatives dosage back up to every day but she is doing little bits constantly in her bum cheeks and constantly clenching to go, I thought the laxatives being put back to daily would help but I am wiping her 15-20 times daily with the little bits that she is just doing. I am also trying to work full time with her at home with me & I really am at the point of losing my shit, I’m trying to remain calm but she’ll do a little bit and then sit on the sofa and then it’s a huge clean of the sofa, I’m also 5 months pregnant and just don’t want her to be like this with another baby, fully aware it’s not her fault but I just don’t understand the backwards step we’ve taken ☹️