Yeast infection

So I’m 6 weeks 5 days pregnant & ive had a yeast infection for about 2 weeks now ! I’m very uncomfortable itchy , crampy, & lower back pain & burning when I urinate ! The yeast infection was confirmed with OBGYN she prescribed a cream but only for the outside 😩 but my back is killing me ! Anyone else going through this ! Any natural remedies ?

Before this yeast infection I had a UTI that was treated with antibiotics 😩 my doctor says it’s Hormonal !

Also vaginal soreness 😩