My girl was exactly the same at 11 weeks, and honestly the bra extender was a lifesaver because I wasn't ready to splurge on new ones yet. Those Uniqlo knit pants are genius lah, so much more comfortable than anything with a proper waistband digging in. I also started layering with my husband's oversized tees and looser dresses during the day since I knew I'd be changing sizes anyway. The water bottle tip is gold too, I found just having it on my desk meant I drank way more without thinking about it. Haven't tried the probiotics angle but that makes sense since everything slows down during pregnancy, so might be worth a chat with your PD about the right dose for you.