Sitting outside... ugly crying

Most days I feel like I’m not a good mother, a good wife, good anything.... today as I was toting my 3y/o and 1y/o to my 9y/o baseballs pics, my 3y/o decides to misbehave, run from me, and whine at the top of his lungs... I’m currently at the stage of constant puking and exhaustion from being almost 9 weeks pregnant, and honestly I wasn’t in the mood to chase him.. I sat my 1y/o down whom walks very well, long enough to grab my 3y/o and within those two seconds he slipped and hit his head.... now I have both boys screaming and crying, all of the parents staring at me... and I’m just over it. So now we are sitting in the van while my 9y/o finishes his pics... and I feel like I’ve failed him... not to mention it’s hubbys birthday, and because we’ve had a hectic week (getting my bonus kids, having to take them back and pick them up 2 hrs away for their aunts wedding, and we were snowed in for two days) I’ve got nothing done for hubby.. please tell me I’m not the only one 😭💔