Drying up??? 😔 please read! Help?!?

HopingForBabyA

So the last two times my DH and I have BD'd by the time he gets ready to finish I am drying up. This has never happened to me before but this is our first month trying.

I should be starting my AF in the next couple of days, if Im not pregnant. Is this normal before AF or if pregnant? Or could it just be my diet and lack of water?