I'm a woman...
I would also recommend having your thyroid tested too. In 1994, I had a tubal pregnancy & my hair thinned a little & by 1996, I was so concerned that I went to the doctor & found out my thyroid was very low. Pregnancy (as well as other hormonal changes) can affect your thyroid function. After being on thyroid replacement for two years, my hair didn't get grow back but did not get any thinner. Then, I had a few surgeries in a short time & experienced more shock loss (which is why I ended up having HT eventually)
But, I'd check my thyroid & iron levels to be on the safe side. If you catch it early, you may not lose as much hair.