Sore nipples after ovulation?

Sydney

I'm apparently 4dpo and my nipples are kinda tender. Yesterday they were kinda tender as well but not as much as today. They aren't really tender yet. Or at least all the time, there have been some times today where they were really sore to the touch but it hasn't been all day. Is this normal or does it mean I could possibly be pregnant? I'm sorry if it's a dumb question, I just don't usually have this happen after ovulation and if I do, I never really realized it.

Me and my boyfriend have been trying and any answer would help☺️