Aw, mama, kaya mo yan! Honestly, yung stress from potty training while pregnant is normal, a lot of us mums go through similar situations, and usually fine naman. But since you're worried at may physical strain pa from the accidents, best to mention it sa OB mo next visit para ma-check lang properly, especially since you're 4 months along na. Alam mo naman, better safe than sorry pagdating sa pregnancy, at sige lang ng tanong sa doctor, yan ang trabaho nila. Hang in there, mama, you're managing a toddler and growing a baby, na super impressive talaga!