I, too, doubt she was attacked, or at least not by someone who meant to kill her.
I can't discount the theory that an abortion provider might have come to the house, but I think it's more likely if she needed an abortion she would have gone someplace else to have it done, not have someone come to her home and risk the neighbors seeing him/her and wondering who the person is. The car in the driveway is strange and those who saw it insist they saw it before police arrived. The presence of the car has made me wonder if maybe she had another man and perhaps he came to the residence, they argued, he hit her and caused bleeding from her nose or mouth. He might have left after that but if she was bleeding heavily or had hit her head during the argument she might have been disoriented. Perhaps she knew this man was coming over and that's why she sent the daughter to the neighbor's house to play.
Didn't she also mow the lawn that day too? She must have been feeling fine until whatever happened, happened. She'd had a very busy morning with the dentist, the lawn work, preparing lunch for the kids, etc. I still think some complication might have arisen from the dental work, all of a sudden, and maybe it was combined with a reaction to the numbing agent she'd received. Possible (but more rare) reactions to it can include confusion, disorientation, low blood pressure, and so forth. My second theory is she may have had an abortion, not that same day, but earlier in the week. Her husband being out of town would be a good time to schedule it. It could be she tried to do too much physical activity too soon. Or maybe she did have a tubal pregnancy, as someone else suggested, and it ruptured. My sister-in-law nearly died from a tubal pregnancy before she got to the hospital. I would think a normal miscarriage would have come on more gradually, allowing her time to call for help.
