kicking pregnant tummy

I'm currently 7 months pregnant with my second and still co-sleep with my 3 YO. however, no matter how I explain to the toddler to not kick/push/hit my stomach she still does it anyways. it's not out of malice but more like she wants to be with me and we do play rough, but that was before my tummy got this big. Is baby safe inside despite the kicks and pushes from her sister? and also I have to keep getting up from lying position at night to satisfy my older one (eg, when she shouts for a diaper change or even a snack) and I definitely feel a strain on my belly and back. any tips to survive this for 3 more months?