What could this be??

Sarah • 29 • Baby Girl #1 11-3-19💕 • Baby Girl #2 2-8-21💕

So i was 45 days late and went to my obgyn and got blood work done and come to find out that i have PCOS so she gave me a prescription to make me have a period. My period ended 2 weeks ago and my boyfriend and i are continuing to ttc and this morning i go to the bathroom and when i wiped, there was a little bit of pink on the toilet paper. What could that mean?? Someone please help.