Confused

Hello, af showed up just now. We have been trying for 2 years with no success. Doc suggested us to move iui. Did 2 round of iui but it's BFN only. Now we are stressed out too much and I am not sure I am ready for next cycle or to give gap now. We desperately need good news now. But I am not sure when to give gap and we are not ready for IVF due to financial condition. So guide me if I need to continue iui this month or have a gap now and start again.