Been TTC for almost 6 months. 4 days late for my period. Been having cramps, back pain, insomnia, very sleepy, and pelvic pain. Most of my pelvic pain is in my right side below my belly. I’ve been vomiting after every time eat something. Been getting negative pregnancy test for the last 2 days. Should I go and get checked out? Should I let this go?

P. S. Been diagnosed with infertility.