TTC after IUD

I had my IUD removed 04/10, I think I got my period 04/13 but it was all spotting/very, very light bleeding, not enough for a tampon and it lasted until 04/20.

Me and hubby DTD a bunch and I started feeling crampy and nauseous, my boobs were sore and I get headaches a lot so I took a test a few days before I was supposed to get my period again (according to the app) and it was negative, I waited and no period still feeling the same and getting cramps in my back a lot (I never got cramps before beside when I was pregnant) so I figured my period was coming but nothing, whe I was 4 days late I took another test and again negative... Now its 12 days late and still nothing.

Is this normal for the IUD? Should I not could the bleeding I got in April as a period and assume my period still hasn't come back yet?

I had the IUD for a year and before that I had the depo shot for 8 months, both stopped my periods so I havnt had a period since before my son who will be two in August.

With my daughter I tested at 9 days late and get a negative and again at 12 days late and got the positive, however with my sone I got a very strong positive at 3 weeks so I don't know if I should just wait for a period or test again.

Anyone deal with TTC after the IUD? Is this normal? Any advice on this would be great.