femara/cyst confusion

Figured this would be worth a shot to see if anyone else has experienced this

Did <a href="https://glowing.com/glow-fertility-program">iui</a> via  3 cycles of clomid and got pregnant on the second ,miscarried that pregnancy but clomid gave me no other issues besides that no cysts no side effects

New Dr put me on letrozole for my 4th <a href="https://glowing.com/glow-fertility-program">iui</a> cycle ,I ovulated super early ,negative <a href="https://glowing.com/glow-fertility-program">iui</a> and then my period after was short for me ,only 3 days

My baseline sonogram last week showed 2 cysts from the letrozole cycle ,both on my right ovary,17mm and 35mm

In the last week anytime my husband and I have had sex afterwards I have had pink/red spotting for a little bit after 

Anyone else experience this?is it normal?is it from the cyst

I asked my drs nurse last week and all she said was some people have breakthrough bleeding when they ovulate (Which i am) but I have never had this before 

No pain no fever ,can't imagine I'm still healing from a d/c 5 months ago

Frustrated !