I sent an email to a professor in my university two months ago for a research position in the lab since her research was about my place and interests.She told she will contact me sometime in feb (since she was on a maternity leave till December and has joined again in January).How should I remind her gently about my email or should I wait till the end of the month?
Maternity does rearrange your life quite a bit, I'm not surprised this fell in a crack somewhere. First make sure she is back, and how all went with the baby (there can be serious complications, and she might not be back yet).
Send a short mail asking if the position is still open, reminding your earlier contact, and perhaps attach whatever you sent originally. Remember to congratulate on the new baby.