TTC. Am i pregnant?

feb 23 was my high peak of ovulation me and my partner had unprotected sex about a week ago ive been noticed real sore breast and swollen and ive become emotional and crying at some things thats not like me at all and just today i notice milk dripping from my breast and my period is a day late i took a pregnancy test 2 days ago but it was negative could i be pregnant and if so when should i take another test