TTC after IUD removal.

I recently (Jan15th) got my IUD removed. I had it for 6 years (it was changed after 5) but my husband and I decided to TTC. We by Saturday the 17th I got AF. It lasted for 4-5 days. Then 2 days later I started spotting for  3ish day..not a ton but enough to notice. It stopped then started again this morning. I've been kinda crampy but not horrible. It's supposed to be my furtile week and I'm worried that because I've had spotting and the negative ovulation test that I won't ovulate. It could be ok. I just tend to over worry.