oh and it says that liquid detergent is better than powder
I am having the same pains :( yay for pregnancy symptoms haha.
WTE says that you can use any detergent you want, just try washing babies clothes with yours and if their skin looks rashy at all, then switch back to any detergent that is free of colors or fragrances, which means a fabric softener probably isn't good if regular detergent causes baby's skin to be rashy. So just try it out and see what works :)
I use all free and downey free softener - because their skin is so sensitive I would want it to be as soft as possible.
I had the same thing and it ended up being round liagament pain. I ended up going to the hospital because it was coming and going for about 3 hours and I ddn't know what it was.. Thankgod it was nothing too serious.