day 3 of potty training. a breakthrough!!! But now I'm worried about lack of poo - advice please

[deaconblue]

Ds seems to be getting it and I'm thrilled. He now knows when he's had a wee in the potty and leaps up with an excited "I did it!" So I feel much more positive that we'll work it out over the next week or two. BUT he hasn't had a poo at all since Saturday afternoon (usually a twice a day boy) and I'm worried he's holding it in. Advice please...

ours blatantly held it for a good day or two before doing one for the first time yesterday, it really upset him and he is very nervous today of the potty...... lots of encouragement and bribes today!

ds has been pooing in his pants all day lol so is clearly fine. Will have to offer a major reward tomorrow in the hope we'll get one in the potty