Yes, I have taken it twice in my first trimester. So far, my little boy is doing fine. The anatomy scan was normal when I had it and everything. Taking the antibiotic has more benefits than letting an uti get worse. I am one of those people who do not like taking medicine unless it's absolutely necessary. Anyways, hopefully you find some reassurance and get rid of that uti.
Definitely take it. I am on my 3rd bladder/kidney/UTI of this pregnancy. I have spent 2 separate days in L&D because of how severe they are. I had excruciating back pain and severe nausea with it. Hopefully if you take care of this now, you can avoid a worse infection.
Re: Macrobid