I am 19 weeks pregnant and have two DC 5 and 2.5 years.
Now it is totally unintentional on their part but they are constantly leaning on, elbowing, head butting, kicking/landing on my bump.
I would not describe it as painful but very, very uncomfortable and sometimes it leaves me feeling almost winded and sick and my stomach feels really hard after a knock/blow.
Fortunately the baby is very active, so I'm sure s/he is okay, however, I'm really worried particularly about later pregnancy when s/he is really big and stuck for space, will s/he suffer any pain or damage from these constant collisions?