UTI need help

I am 12 week preggo and I lately been feeling on different days like I am getting a UTI and then I feel like the next day I wake up it’s all gone and no more pain then two days later it comes back . And I know it’s a uti because I go try to pee and only a little comes out it’s like pressure on my bladder and then I feel like I have to pee a huge load and I go and a little comes out . And it’s just uncomfertable . What helped you I need fast Relief !! Or what can it be