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My husband and I have been trying to conceive a third child for several months. With our first two children, we became pregnant almost immediately. I am experiencing some signs and symptoms, but am not sure because I have not missed a period. I think I could have conceived four months ago. I feel a fullness in my lower abdomen, and sometimes think I might feel movement. I keep telling myself it is gas. I have taken several OTC stick tests; all say negative. Does anyone have any suggestions or similar experiences? Confused in Oklahoma