Its normal due to hormones etc. Floss more regular and book to see your dental hygienist more often.
Go to your dentist, I had that with my last pregnancy and they said when you're pregnant you can get gingivitis (however you spell it) it's a sort of gum disease during pregnancy but it should go away after the baby's here
Dental hygiene is extremely important during pregnancy and dentist visits as well
My gums bleed like crazy when I brush my teeth or eat anything pointy.. it's normal. Pregnancy gives us more blood.