Hi, I just want to ask if how long does sperm survive in cervical mucus a day before period? I did not have penetration with my boyfriend because he wore a condom on. But I was worried if there were any precum in the tip of the condom because he touched the base of his penis while he was putting it on exposing the condom. But when I touched it, it was kinda dry but still I'm worried if some of it got into my vagina while we were grinding. It happened a day before my period and around 6 to 7 days after the sexual encounter, I ovulated. I have PCOS too. Around 7 days in the morning after the encounter, I have egg white cm and after that day it was no longer egg white but thick mucus. After ovulation it was increasing for two days but starting to get dry after that. Now I am experiencing cravings for salty and sweet foods, slight moodswings and have some acne.