I was ok'd by my Dr to take Benadryl in my first trimester only when needed. I am now on Zyrtex which is a category B so it's safe for use during pregnancy. I would call your Dr first before taking anything. Maybe they can give you a prescription for something you can use in first trimester. Your almost in the second trimester too.
my dr told me regular benadryl was a ok during pregnancy, i also asked my freind who is a pharmacist and she said the same. the pharmacist said benadryl is one of the oldest allergy meds out there and b.c of that a long time ago it was actually tested on pregnant women with no concerns. now a days they arent allowed to test on pregnant women ( thank God) so that is why bendryl and tylenol are ok....i took benadryl my whole pregnancy and my dd is 100% healthy. i did only take 1, usually i would take 2 but i tried to cut it down.
Benadryl is safe. Also if you have problems sleeping you can take Unisom sleep gels. They're just benadryl with a bit of a different formulation.
I got a list from my midwife on things safe to take and she said that it was one of them. You just only want to take anything when it's really needed.
I also was told by both of my doctors that Benadryl was safe.