PIO and passing out

Marina.

So I work in the medical field so generally have no aversion to needles/blood. I have been doing PIO shots for 7 weeks now after my FET. Currently 8 weeks pregnant with my first and the all day nausea and occasional vomiting has really taken its toll. About a week ago I passed out right after doing my PIO shot. I have been doing them myself since the start without issue. Now every time I do them I have to push it in fast before I pass out but am getting really lightheaded. I have tried sitting and laying without help. I am trying to drink as much fluids as I can but know I’m still dehydrated. Anyone else with this problem and have you figured out any ways to help? Thanks in advance