Induced period (provera) help?

Jessica • My name is Jessica, I am 27 years old. I have PCOS, My sweet husband and I have been blessed after 5 years TTC and many doctors, we have our rainbow twin girls. After 2 years we are ready to try for more❤️

So, you would think after doing this for 4 1/2 years I would remember.. but it's been about 2years since my last <a href="https://glowing.com/glow-fertility-program">fertility treatment</a>. I was prescribed provera to start a cycle since before that I hadn't had one for 5 months. Today is day 8 of my cycle and I'm still bleeding.. is it normal to still be bleeding? I took letrozol days3-7 and started Gonal-F injections yesterday day 7. I go for my day 12 follicle scan this weekend and am wondering if I should call my Dr where I'm still bleeding.. probably a stupid question it's just been forever and I'm not sure if this is normal.