Spouse, may I ask how old you are? These kinds of temptations can come very strongly on women at certain times. It is never a sin to be tempted, and since you are upset, it seems clear to me that you are not indulging the temptation. It is in giving in that temptation becomes sin and if that happens, you can confess and be forgiven.

If no priest is available, saying the Act of Contrition sincerely while resolving to confess to a priest at the first opportunity is certainly all you could do and God recognizes that, and he loves us.

I do believe it is a Satanic oppression and you do have the same protection as a baptized Catholic because I remmeber you telling us in another thread how you have asked for baptism and been refused because of the priest's fear of the Muslim laws against baptizing adults. Don't listen to the fanatics who claim there is no "Baptism of Desire", a case like yours is most certainly the classic case in which God does grant the same grace to your soul, especially if you continue to seek Baptism.

Our Blessed Virgin Mother is very very real and nearby with her cloak of protection, too. I do believe I would have fallen away if I had not completed Novenas to her. She certainly understands our weaknesses as women and can comfort you and protect you from those temptations.

The images you describe seem to me to  be very similar to a lot of the blasphemous hollywood stuff that permeates American culture.  Even just a glimpse of them can enter the subconscious and be brought up by Satan when he wants to torment a saintly soul.

Spouse, I keep you in my Rosary prayers.