Cramps and other weird symptoms

I am currently late. Was due to start 2-1. Had last af on 12/31. Around 1-15 I had severe cramps that almost had me asking my dh to whisk me away to the ER. I couldn't move and had a pulling sensation from down there. No bleeding. Was very similar to constipation. I've had some sensitivity to smells and felt a teeny but nauseous on 2-2. Tested 2-3 but BFN. Any tips or thoughts?!!