estrogen patch

Dr,
   I've written you before...one three year old, 2 chemical pregnancies, stillbirth 20 weeks, cord accident.  OB says that she's never seen a cord so tight before around a neck.  All genetic and chromosonal testing on him came back as normal.  
   My RE has given me the okay to try again..I'm currently on my second pack of birth control and in about two weeks I will start another cycle with injectables and IUI. Both times I've done this I've had "success" even though I've had a chemical pregnancy and stillbirth.  They are saying that there was NOTHING that they could have done to prevent a cord accident.  Anyways here is my question. Both times I've gotten pregnant with IUI they have put me on baby aspirin and progesterone in oil shots starting two days after IUI.  When I've had positive pregnancy tests both times they have said that my estrogen level was super low so they put me on an estrogen patch.  Should I ask my RE about putting me on an estrogen patch during the luteal phase this time?  Would this be helpful because both times I started it at 14 dpo.
    My RE says that she's never heard of a cord accident happening to someone twice...have you?  I'm really scared but I want to try again since all of the testing came back normal.  And you asked about me being tested for APS....that all came back as normal too..so thats good!
Thank you,
Shayla

[Forum-M.D.-SP]

I also have never heard of a cord accident happening twice. Regarding luteal phase estrogen, or supplemental estrogen after a positive pregnancy test, there is not a great deal of convincing evidence that adding estrogen in the luteal phase or after a positive pregnancy test helps. Why not at least mention it to your RE and work with him/her to decide what you feel is the best thing? I would not be in favor of estrogen in the luteal phase - it might suppress LH hormone secretion from the pituitary gland, and LH is what drives the ovary to make progesterone, which in turn is important in maintaining a pregnancy.