Could I pregnant at 10 dpo?

I am 10 dpo after having an IUI. My hubby's count was very good and so were my follies. For the past couple days I've had sore bbs (nipples are always inverted and they're occasionally popping out..tmi..sorry), constipation, very tired, vivid dreams. We finally got preggo after two years and miscarried two months ago at 4 weeks. I had these same symptoms minus constipation. Just don't know if my body is playing tricks on me, its really happening or I'm just crazy! I've been testing w/ an extremely sens test and nothing yet. Any thoughts??