Aww big hug, it really is hard when your PG.

DD1 is HORRIBLE when she teeths and i always assumed she was teething when she was having restless nights, at about 15mths (right as DD2 was due) she was becoming really bad but didn't seem to be teething, wasn't having any issues during the day.

She would come into our room and be fine though, head would hit the pillow and OUT COLD, a lot of mums at my MG experienced the same thing around the same time so i highly doubt it's because your PG but what i found made a HUGE difference with her... A PILLOW.

I bought a kids pillow from Big W, at the start i was so paranoid i kept it under the fitted sheet which she liked but wasn't as comfy, now it's just out like normal, she sleeps on it, cuddles it etc and outside of teething she sleeps really well.

Prob no help but i hope she settles for you soon.