it's haemorriods but probably from the pressure on your lower half now you've got a bigger bub in there.

I got them around the same time when pregnant with DS, they got BAD after birth but Arcadia is right, my midwife laughed when i mentioned it and told me this too.... It goes away, eventually use cream to help, but the pain/ lumps sound like a vein clot....not bad just painful..... No pushing and a soft pillow might help