I had intercourse about three weeks ago, it was during my ovulation. I stopped using the pill about four months ago so I've been relying only on condoms. My partner has a low sperm count and I have endometriosis which according to my doctor makes it harder to conceive. Even if I understand all of this, I can't shake the notion that I may be pregnant. I've been feeling bloated, my lower abdomen hurts, I feel nauseous, tired, my breasts feel tender and my period is a few days late. I understand what I'm feeling could be related to hormonal changes in my menstrual cycle but I can't help feel worried. Am I being irrational? I'm guessing that it's highly improbable that I'm pregnant or am I wrong?