Progesterone

I am on progesterone suppositories for about a month & a few weeks now, I am 7 weeks 4 days pregnant & my boobs are soooo sore, they feel bruised & my nips are sore as well. They started hurting more & more within the last week. Is this a pregnancy symptom of a progesterone side effects? I am also nauseated quite a lot I feel (all day sometimes) & other days I feel normal. It comes & goes. I'm starting to worry myself & thinking they aren't pregnancy symptoms, it's just the side effects. Anybody experiencing the same as me? :(