Skipped a few pills this month

I’ve been having sex like crazy with my new man and he never told ups out. I started my birth control the week that we decided to have sex and I missed three pills, started bleeding, then doubled up for three days after. I skipped another pill a few days ago and we’ve been having sex this whole time even when I was bleeding (when it wasn’t so much blood) and I’m just scared I’m going to be pregnant. I have a 17 month old. Has this happened to anyone?