I need help

I’ve been trying TTC for a little while now. 3 failed pregnancies and so many I thinks but just disappointment. I have 2 apps to track my cycle and I’m currently 34 days late but I’m afraid to take a test to be let down. My menses have been irregular since I first started my cycle. As I got older they became more consistent but if I have extra weight it becomes irregular again...my nipples are extremely sore and breast are tender. I have had some strange turn offs to drinking pop. It does not agree with my tastebuds. I don’t know what to do...any suggestions???