Symptoms already?

So me & SO has used pre-seed this cycle. We're hoping it worked. I think it did. I'm 2dpo &or conception as well. Cause I know conception can happen either hours later or up to 5 days. Well I'm having some symptoms that I NEVER have after ovulation. I have tender breasts/nipples, back hurting, peeing more than usual, also mood swings. I have a really good feeling for this cycle! But what would you guys say?