I recently went through fertility treatments and I have unused meds. My sister is also needing fertility meds and I was going to give her mine because she needs the same exact ones. The only thing is that she’s not going to go back to the fertility doctor. She’s planning on doing like a medicated timed intercourse treatment at home. Would it be safe for her to do this? She has her own metformin that was prescribed to her. I would only be giving her my letrozole, provera, and pregnyl. And it’s all brand new . I just want her to be safe while doing this