I am 16 weeks 4 days with mono/di twins.. Currently I'm still working but lately every day has gotten harder. I have less energy, it's hard to stand for more than ten minutes at a time, my legs ache ALL the time, and my belly feels so heavy it hurts my back.. My doctor says I can work as long as medically allowed.. But how long should I? I'm afraid that I'm hurting myself more than helping. But I'm very independent and like to do things myself. I also have four other kids at home (7 months-5 years) so it's not like I get much rest there either! I'm just confused.