Elevit is renowned for causing constipation due to the high iron levels in the tablets. I've recently changed to Elevit and it's causing havoc on my bowels so I'll finish the pack and go back to my faves, Natures Own.

Metamucil is perfectly safe to have while pregnant - either the powder or tablets. I have taken it daily since early in the first trimester as I was suffering from constipation. I know all about it if I happen to miss my daily dose of Metamucil!

When my constipation was at its worst, I took Agarol which is also safe during pregnany and generally works within a few hours. Only use this if you are well and truly blocked up though, don't use it just to help things move along a bit better.

Make sure you're eating lots of fibre, try the Metamucil and drink plenty of water. I'd even suggest getting off the Elevit and trying a different vitamin. I personally find Blackmore and Natures Own so much better. Natures Own is my fave though as it's much cheaper than Blackmores, has the same ingredients with a few extras thrown in and is only one tablet a day.