11dpo cramping

So I’ve been having mild cramping on & off from dpo9 to now dpo11 no bleeding and unlike AF these cramps come & go. Lastnight I woke up in the middle of the night ran to the bathroom mouth watery gagging felt like I had to vomit nothing came out (so weird) that’s never happened before, with af i normally just cramp one day & start my menstrual the same day I never cramp for days on end with no blood. Seems like implantation cramping to me. Anyone with a similar experience?