15 weeks pregnant and having burning sensation in lower abdomen

[TwinMummy30]

Went to GP yesterday as I'm having a lot of weird discharge, she checked my urine and ruled out UTI, but gave me Amoxicillin. I'm not having any pain passing urine but need to go very often. I feel lots of pressure and that burning. Shall I call a midwife? Or wait for the antibiotic to work?
Did anyone experienced anything like that?
Thanks

ring and check, you will probable find it goes when the antibiotic kick in,

but never feel you are being a nuisance by asking for reassurance.

It could be thrush or something like that? I'd speak to the MW just incases :)

Thanks for your replies. Gp took swap, but didn't seem to bother about the burning.
I try to call MW tomorrow.