Post IUD TTC

Alyna
Hi! I'm currently on CD 44, with a million and one BFNs. My cycle was always 30 days give or take with my IUD, had it for 5 years. I removed my IUD in December and had normal cycles until now.. 
Have any of you ladies experienced late BFP or random missed periods after IUD? I feel crazy. 🙃
Edit: I've had on and off cramping for 2 weeks, both ovaries and lower abdomen. I do have an appt. with OB on the 14th.