AN ULTRASOUND CONFIRMED. IM PREGNANT

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Hey all! I am 43 days late on my period. But i am usually irregular, so I didnt really think about it. My DH and I had sex 4 days after my "predicted" ovulation date..so i ovulated around the time we had sex. When i lay down on my back i have a huge lump. And when my bladder is full its even larger looking. I am prone to ovarian cysts as i had my left ovary removed years ago due to a cyst so big it was noticable. But it was only on the left side. This lump is right in the middle of my stomach, very low abdomen. Here is a pic of me laying on my back, side view. Is anyone familiar with this kind of lump? Pregnant or not? Its right in the middle of my abdomen