I was told at my 20 week scan on Monday that the placenta is covering my cervix. I was given no advice on it or what it really meant other that "It's blocking your baby's way out but it can move by 32 weeks". I've seen all sorts on the internet now about not having sex and taking it easy? What should I do in terms of work? I work in retail so that involves a lot of being on my feet, rushing around and bending over. I'm not sure what I should and shouldn't be doing!