I'm nearly 23 weeks pregnant and have trouble sleeping. I also have an underactive thyroid and via a thyroid post on anoher forum I discovered that magnesium is a wonderful mineral for helping with insomnia and many other ailments, such as cramps, migraines, aches to name a few. So I've been using Magnesium oil as that is safe for use during pregnancy and apparently is the best way to get magnesium absorbed into your body quickly. But I'm getting through the oil quickly and would like to try some supplements as well. I know that supplements can have a laxative effect which I don't want at the moment! There appears to be several sorts of magnesium supplements, ie mag citrate, mag sulphate to name just two,there is also a lot of conflicting information out there as to which is safe during pregnancy. So if any of you have taken magnesium supplements during pregnancy and found them to be a safe (and non laxative!) Please can you let me know what you took.