Ttc after chemical 🙏🏼

I’m still new to the opk world. November 2 we found out we were pregnant. But November 9 I started bleeding. We knew we wanted to try again ASAP. Dr said it was safe and in 2-5 weeks I should be able to. So around the same time I would normally ovulate after my period i ovulated after the chemical. Or atleast I believe I did as I always have pains and symptoms of ovualtion. Also right along with my pains I had my positive OPKs with 2 different test. Now my question is why would the levels start to go back up again? I believe I ovulated Friday/Saturday which was the 22nd/23rd. My husband works nights during the week so baby dancing is very difficult lol. Please help if you have any insight.

Thank you so much 💕