I had the same issues went for a teeth cleaning and have pregnancy gingivitis :/ make sure u brush well floss well and mouth wash is a plus!
It's very very normal it's considered pregnancy gingivitus. My dentist told me to switch to sensidine and just keep up on brushing and flossing
I would go to the dentist, just to make sure you don't have an infection in the gums then report to your health care provider