Side effects- progesterone

Mi

I’m 17wks and started using progesterone suppositories at 15wks to prevent preterm labor again (had my daughter at 34wks, no signs). Insurance is dragging their feet about approving Makena injections, so I have to use them in the meantime.

I’ve had horrific headaches since using it, along with worse nausea and my boobs hurt SO bad, its painful to even wear a bra or just a shirt. Are these side effects normal? Are the side effects of the shots worse?