I am new to this forum and was looking for some advise or comments. I am about 4 days late and my cycle has always been regular. Last month (Oct) my cycle only lasted 2 days and was very very light. This month like I said I am 4 days late. I took an at home pregnancy test (the Clear blue digital one) yesterday afternoon (i know you are suppose to do it 1st thing in the morning but I didn't want to wait) and it came back positive. Was kind of shocked because I am on the pill but at the beginning of the month I was on an antibiotic and I have heard that they can effect the pill. So I took another test this morning and it came back negative. I am thinking I need to go to my doctor but I wanted to see if anybody else had experinced this and what their outcome was.