Girls, I'm sorry to ask such a question, but can you please help me? I…

Girls, I'm sorry to ask such a question, but can you please help me? I'm putting in candles now, and right now I put it in and there was such mucus like discharge, but it dried up quickly, is that a prolapse? The due date is still small, 23 weeks, or is this normal? Nothing hurts, the lower abdomen occasionally pulls for a short time, but the doctor said it's normal now, the pelvis is spreading and the uterus is growing, my back also pulls, but I think it's from fatigue.