All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
There is no doubt that visiting the graveyard every week is too much, and a woman should not visit graves so often because the Prophet cursed the women who visit graves frequently.
Moreover, there is no difference between visiting the grave on Friday and on other days of the week because it is not confirmed that the Prophet singled out a day of the week for visiting graves. Therefore, specifying a particular day for visiting graves is an innovation as per the Fatwa of some scholars . For more benefit, please refer to Fatwa 90758.
Finally, we advise you not to go to the graveyard so often and not specify Friday as a day for visiting it.
For more benefit on the ruling and preconditions for women visiting the grave, please refer to Fataawa 84400 and 81272.
Allaah Knows best.