Breast pain and light pink period

i need some help my husband an i are trying to get pregnant we have sex almost every day were (newlyweds)i get my period on the 3 rd of every month well this month i got it also on the 28 th but it was very light pink it was almost as if it werent even there,ive had all the signs of pregnancy but my breasts hurting ive taken two pregnancy tests i didnt kno when i should have taken but now an they were negative we dont wanna get our hopes up but then i dunno what we should do?