What are my hair loss options for Androgenetic Alopecia during pregnancy?

during pregnancy you can get steroid shots, do light therapy, and get PRP and A cell stem cell therapy.  However, if this is stress related nothing will really help till the stress is removed.  Best, Dr. Emer.

In  my opinion, you need to stop all medications and treatments during pregnancy. Low level laser therapy would be acceptable. Following delivery, you can resume The PRP but without the A cell. A cell is a foreign protein and safe use during breastfeeding has not been determined.
PRP hair MD.com

Low level laser treatments are the only safe treatments during pregnancy for women with AGA. This applies to most of the standard at home devices not just the device you mentioned.Everything else needs stopping and some treatments need stopping well in advance. Yes, as you have stated,  it is possible due to hormonal surges during pregnancy stopping treatment may potentially not have a huge effect while pregnant and one can start many treatment again after giving birth. I generally do not recommend restarting until month 1 if the baby is breastfed although many studies and reports show no harm in use if minoxidil and antiandrogens by women who are breastfeeding. It should be noted that some women do experience hair loss during pregnancy as well.

I would be careful about taking any medications to treat your hair because any absorption of these medications could impact your baby. This includes minoxidil which does get abosrbed through the skin of the scalp. The hormonal surge is almost certainly responsible but after the pregnancy, the hair loss often reverses.