Hello sir/ma'am, I had sex with my girlfriend on 7th and 8th of the April month to be exact, and it was my very first time. I didn't use any birth control like condoms etc. But I drew my penis back every time I felt ejaculating and put my cum on a towel away from my girlfriend's vagina. To be on a safer side I gave her ipill on 9th of the month thinking if there could be any sperm inside her. It made me panic when I google about the relation of pregnancy with periods. My girlfriend had her periods on 22nd of the month and I found that I had sex with her during the exact half of the gap between 2 period cycles, i. E. By the 14th day, the common time of production of the egg. So I'm very much worried that I had my sex on the very peak time of getting someone pregnant. I can't think whether the pull-back technique and the contraceptive pill (as a plan B) actually worked or not. I will be very much happy and will act accordingly if you could suggest me something related to my issue. Please let me know what is the chance that my girlfriend still will get pregnant even after taking these precautions. Thanking you. Regards!