While some ear infections can go away on their own, many require the use of antibiotics. You won't know unless you get in to get checked. I'd suggest the er or going to an urgent care center if you can't get ahold of your doctor.
I had one and a hole in my ear drum.. they gave me drops and antibiotics at the ER.. go to the ER so they can give you the medicine that you need
I believe you just go in and they give you anti biotics safe for pregnancy.
If you go to the er they Will treat you and send you home the same day:)