Hi, Welcome to HCM, It is common problem in pregnancy to have constipation due to various reasons,but as you are taking laxative cremaffin, as it contains paraffin and magnesium sulfate,which is habit forming and may affect absorption of many nutrients. it is not safe to take during pregnancy,please consult your Gynaecologist for prescription may be stool; softener like DOS ( Dioctyl sodium sulfosuccinate) may be given to you. plenty of Water is a good choice. Fruit juice — especially prune juice.high-fiber foods, such as fruits, vegetables, beans and whole grains.walking and other aerobic activities can help prevent pregnancy constipation. Take care Good Luck.