I am 10 weeks preg. and clean for a living. i feel pelvic pain after 3-4 hrs of cleaning. am i hurting my baby? what's the pain from?

Likely ok: It is very common at this stage of pregnancy to have pain from the round ligaments. They are muscles and spasm causing cramping low. If the pain goes away with rest, and there is no bleeding, it is likely ligament pain. It helps to rest and drink plenty of fluids. You should go to your provider if the pain continues or if it is associated with bleeding.