Hi ladies well I'm pregnant with baby number 4 and I suddenly was spotting and then bleeding since yesterday and today, so i went in the E.R. today and my HCG levels are low it's about 39 what's the best way to get my levels back up. I'm very scared and I don't want to lose the baby, also they did a sonogram and couldn't see a sac just cause of my HCG levels but I'm still pregnant.