Nipples and areolas.

I've never even see veins near my nipples until the last 2 days. and my areolas are definitely darker. I read those are both Pregnancy signs. That doesn't just happen does it?! I'll obviously test when I'm supposed to get my period in a couple days, but what are y'all's thoughts??

I should probably say my husband and I had sex unprotected on the day of ovulation and the days leading up to it. So this wouldn't just be a random thing. It's never happened before.