Bubbling in uterus

I'm only 3 or 4 DPO but this morning I'm feeling super low Bubbling in my uterus area. It's doesn't feel like gas at all... It's fun feeling. Anyone have bubbles before a BFP. It's not a pain by any means not does it feel like your 'typical' gas feelings. (Not ruling out that it could be gas though) I hate symptom spotting but I don't normally feel this. Also been queezy past 2 evenings, not in the mornings just evening time and no getting sick. Anyone else?