Aw, first time pregnant mom, I get it, lahat ng bagay nakakabahala! Bubbles sa ihi during pregnancy can be normal sometimes, especially pag dehydrated ka or mabilis ang flow, pero it's also one of those things na better to check with your OB just to be safe, a few of us friends namin nag-alala din about this and doc lang talaga ang nakapagsabi kung okay lang or may protein sa urine na need attention. Make sure na hydrated ka talaga, at don't worry too much in the meantime, pero definitely bring it up sa next check-up mo, okay?