What do you think?

Had sex on ovulation day(I always know because I always have a lot of light brown mucus and it happened literally right after we finished...sorry tmi) the following week(last week) I had stickiness when I wiped. Not a lot but usually I’m dry at that time. Boobs should have been getting sore on Wed/Thurs last week for my period due on 1/18, but didn’t start getting sore until Saturday instead. Took a test yesterday and it was BFN. I’m getting SO frustrated and ready to give up thinking we aren’t meant to have a third. I have twins who just turned 4 on 1/13 and while I LOVE having twins, I feel jipped on pregnancies 😬 not sure if that’s a normal feeling for twin moms or not. Been trying since June.