Anyone on progesterone and metformin?!

I'm 8 weeks and 1 day pregnant and on 200 mg endometrin (progesterone vaginal insert) and metformin 3 times daily. I feel that the metformin is making me a bit more sick now. Has anyone experienced this? Does anyone have any tips to make me feel better? I know I only have to take the metformin until 10-10 1/2 weeks but I'm praying I can last that long without it interfering with work. I am willing to do anything to keep this baby. This is my third pregnancy and will be my first baby. Any advise will help. Thank you.