If a wife is pregnant and is subsequently subjected to intercourse (which implies reconciliation or a new basis for iddah), how do the two waiting periods interact?

Primary text

If the waiting periods are ruled to run concurrently (tadaakhul), both periods end simultaneously upon delivery of the pregnancy. If they do not run concurrently, the waiting period for the divorce concludes upon delivery, and a new waiting period based on procreation (Quru') commences for the subsequent intercourse.