Ovulation occurs exactly fourteen days before the start of the next menstrual period. So, if your last menstrual period started on 04/29/09 and your menstrual cycle is usually 34 days long, then your next menstrual period is expected to start on 06/04/09. When you subtract fourteen days, you will get the expected date of ovulation, which, in your case, should be 05/21/09.


In order to conceive, the spermatozoids from the sperm have to enter the vagina and the uterus and reach the Fallopian tubes. There they meet the egg and conception might occur. If the spermatozoids do not pass the appointed path or do not meet the egg at the end, conception is impossible.


Since there is little possibility that the spermatozoids entered the vagina, according to the data you provided, then pregnancy is highly unlikely. However, you might want to visit a gynecologist to check for pregnancy with a physical exam, hormonal laboratory tests, and an ultrasound scan.