My dog

Can you help me my dog was in heat and her and my male did it all the time but didnt lock but last time they breed they had no problem is there a chance that she can still be pregnant without getting stuck and the reason my male just had surgery like 3-4 weeks ago for swallowing a bouncy ball so that is why I think they didnt lock cause it hurt him but he did get in and then she would have stuff drip out when they were done so do you think she is pregnant and it has been 8 days and her boobs are getting bigger and she threw up the first three days in the morning And she was bleeding about three weeks ago then like 8 days it way clear so how do I no if they got stuck bacause I didnt see them or no if she is pregnet and she is more tired now