Placenta previa

Charla

This is my 4th pregnancy and I was told at 13 weeks that my baby was still a little low. I am now 21 weeks and he is still low. Was diagnosed with placenta previa. I am high risk due to preterm labor with 2 of my other pregnancies. Has anyone been diagnosed with this and how is it going for you? Another problem that I am having is I am not gaining enough weight which I never had a problem with before, does anyone know round about how many calories I need to be taking in everyday?

Thanks