Not a doc but can give a personal anecdote.

I (33 at the time) was vaccinated with Moderna in February (played my asthma card and got moved up the list).

My wife (27) was vaccinated in March with Johnson and Johnson.


We were trying for our 2nd at the time of both vaccinations. We had a positive pregnancy test in early April. 3 days after the test, she had bleeding and the OBGYN chalked it up to an ectopic pregnancy. In May we get another positive test and are in the 2nd trimester. Every appointment (the 3 she's had) has been completely normal, everything appears healthy.


Again, not a doc, but personal experience

I got the second Pfizer vaccine in March, got pregnant in April, had a miscarriage in May, got pregnant again in May and I'm heading into the second trimester. I did have low progesterone when I was tested the day after peeing on the stick so I went on progesterone supplements. So far, so good. If she's really worried about the vaccine and it's effects, I would see if she can discuss testing her HCG and progesterone levels after she finds out she's pregnant. My OB was open to it after the miscarriage, but it seemed pretty routine if you asked for it.

My OB says it's best to get the vaccine before you start trying because it minimizes the risk to the baby. Otherwise, she doesn't recommend either dosage in the first trimester, mostly because if you haven't gotten it by this point you're skeptical and miscarriages are common in the first trimester. She doesn't want the patient becoming even more distrustful of modern medicine if they were to have a miscarriage after the vaccine, even if it was going to happen anyways (and it's not like you can predict that). Second and third trimester, she recommends getting vaccinated if you haven't already.

She has said from COVID alone, she has had a stillbirth and multiple babies whose lungs weren't developed properly and needed several days to weeks in the NICU full-term. Those were with fairly mild Mom cases. She says she's just not seeing those same results with Moms who get vaccinated and don't catch COVID.