What do you think it could be?

Charity • Wife. Mom of both💙💗. Currently pregnant with twins🤰🏼.
Okay Ladies, I am 17w2d and my sugar made me faint at exactly 17w and just to be safe I went to the ER to get a check on baby and because I'm a FTM and this has never happened to me so it scared me. Every since then I have been getting small pains that kind of feel like someone is poking me from the inside which I first thought just may have been baby but now I think surely he couldn't be causing this if it causes a little pain, I check his heart rate with my at home Doppler and it is still going strong (checked it as I typed this) which is why I am asking on here before I call my OB. Do you ladies think it may be him or something else? The pain is not just in one place it happens in varies plaves, but I would say it is a lighter pain kind of like a small jab.. Thanks in advance!