Your meds and her pregnancy have nothing to do with getting or giving sexually transmitted disease...please remember "nice"people, including you, can carry them- sometimes without realizing it.  You and she being tested can protect both of you and the baby.

we all now what unprotected sex can do and the dangers, so just use your common sense and good judgment, the child should be the most important thing now. You are the only two who know where you have been and what you may have besides your doctor!

As for the meds, why dont you google there name to find out the side effects, or discuss all your issues with a doctor about meds, probably the safest way,

If neither you nor she has any STDs, and you both want it, why not? Your painkillers are irrelevant.

go ahead if you love each other do it