I have a 35 day cycle and I had a good time with my husband on my 10 , 12,14,15,16,18th ,20th of my cycle . And now since 20 days I m with lower abdominal pain and I m feeling sleepy for the day long , I get tired very soon . And since 4 days my breast also pains a lot. Can I confirm this as my pregnancy because today is my31st day .