I'm only 4+2 so no mum guilt yet in terms of not having energy to do anything with my 3yo. (Though she's just broken up from preschool today, I chose a SPECTACULAR time to get pregnant and have the first trimester, didn't I?)
But the day I found out, I sobbed my eyes out with mum guilt, thinking how much her life is going to change, and also, irrationally, worrying about her if I died during childbirth.
Woke up the next day not feeling like that at all, think I was just a bit overwhelmed to get a BFP so quickly at my age and being a bit overweight. Expected it to take waaaay longer if I'm honest.