So me and my boyfriend want to ensure we do not get pregnant when we have sex at the weekend. I went to the clinic and got the noriday proestrogen only pill. I had to get this one as the combined pill was not suitable for me. I don't think the proestrogen only pill stops ovulation, only thickens the mucus:(. Anyway if I'm on the proestrogen only pill, use a condom AND pull out, also using the rhythm method to ensure I'm not ovulating, what are the chances of getting pregnant, from doing all this? Thanks!