I had my HSG on Friday. An HSG is when they inject dye into your uterus and take X-rays and the dye shows the shape of the uterus and whether or not there are any blockages in the fallopian tubes. I admit that I was irritated about having to get one at all. I had had a healthy pregnancy and delivery via C-section. I got pregnant every time I tried, so clearly my tubes weren’t blocked. But the RE wanted me to do it, so I did. And it turns out that I have a slightly bicorunate uterus (sometimes called arcuate.) I’m not exactly sure the degree (I will found out on Thursday at my RE appointment), from the pics I have found online it could be MUCH worse, but it is definitely not normal.
When discussing this with my dad (the OB) he said that most likely this was not contributing to my chemical pregnancies, but….if the embryo was implanting in the area where the uterus didn’t form properly, then its possible there is reduced bloodflow in that area, which could cause an early miscarriage. But, only if it implanted in that particular spot. So, its a weak possible explanation. However, it does explain why I went into labor a little early with my son. My water broke at 36.5 weeks and I never progressed past 1cm dilation in 24 hours of labor. Looks like he just ran out of room in there. So, this isn’t a strong explanation for what has been happening, but it could be a piece of the puzzle.