My hubby,and I had sex on oct 17th and my period came on the 20th. I had nausea that weekend and then around 26 and 27th of october i had little pains on ovaries right side, and lower tummy, but i knew i had ovulated already. I am still experiencing nausea now, but now I also have indigestion, sore breast and nipples for about a week and half now. I went to Dr yesterday and got urine test and it was negative. Could i be pregnant but to early to detect?