TMI- idk what is wrong

April • Pregnant, my boyfriend's first and my second. We have a 7yr old daughter. We're due April 16th.
I don't know what's wrong with me. My nipples are so sensitive right now. I notice this a few days ago. My breasts are fine, it's just both nipples. I already had my period 2 weeks ago and I just got done ovulating. I don't know what it could be.  They hurt to the touch. Of course I googled it and came up with nothing. It could be "jogger's nipple", although I walk don't jog/run. No new bras ... So I just don't know .. Any ideas?  Oh and only had sex on the 22nd 23rd so I can't be that ..