Pregnant on birth control?

Lisa • Mom of 4 boys and one baby girl. Mom of a high-school graduate, preschooler in heaven, 3 year old twins and a 1 year old princess.

I have an IUD and I’m nursing a 7 month old. Yesterday at work I went to the restroom and saw a little pink and thought maybe I’ll start my period but when I stood up it felt uncomfortable like something poking me. The best way I can describe it is when you have a tampon in but not all the way. I haven’t started my period yet since birth and she’s biting when she latches. This could be due to teething but with the other issues I worry I might be pregnant. My boys bit me like she’s doing when I got pregnant with her so it’s like deja vu. Hoping I’m not pregnant, testing in the morning. Anyone have an issue with an IUD?