Medication side effects

I was having alot of contractions and went to drs and they diagnosed me with a uti and bv I was put on two meds flagl and macrobid I took it at 8 PM and I also took a probiotic like at 4 PM just to prep my gut and avoid a yeast infection from the flagl well I've had stomach upset loose stool twice already and nausea it was only my first dose!!! Agh this is tough! I have to take this stuff for 7 days!!! :( just wanted to let someone know I dnt feel comfortable letting my friends know lol or my husband! I been so crabby with him so I am avoiding him! Oh yea I am so crabby and super tired lately I hate it 10 more weeks to go only 10 more weeks!