Just sick or pregnant?

hi

I have pulling like cramps, very nauseous, slight headache all day. took a cheap pregnancy test twice today, 11 days post <a href="https://glowing.com/glow-fertility-program">IUI</a>. both negative. Taking a test in the morning with a first response. I just feel so shitty. I have never felt this way, even with my first baby. I deal with infertility. Took 18 months and 2 IUIs to get my son. Now on month 6 of trying for #2. Pray for my BFP please!