Am I being paranoid?

I have a two and a half year old son and a 5 month old daughter. My daughter was conceived when I was still breastfeeding my son, before I had had a period.

My husband and I usually used condoms but it was out anniversary and out we figured that since I hadn’t had any periods or spotting we would probably be OK.

My husband wasn’t too thrilled at first to find out I was pregnant again (his reaction involved four letter words), but he came around and we are both happy to have been blessed with our daughter. My husband has said that he doesn’t want to have any more kids. He thinks that two (one boy and girl) is a good place to stop. He was considering getting a vasectomy, but I talked him out of it. I don’t want to have another so soon, but I hate to decide that I don’t want any more permanantly – a few years down the road I might feel differently. Also as a Catholic I would like to learn and practice Natural Family Planning, but I’m afraid of getting pregnant again before I have “normal cycles” to monitor!

I have been exclusively breastfeeding my daughter. I haven’t had a period yet. I can count the number of times that my husband and I have had sex since she was born literally on two hands (maybe even one, isn’t that pathetic? I guess when you have two grad students with two little ones under 3 there is not much opportunity or energy for sex). (Although the Catholic Church frowns on it) we used condoms for all times that we had sex and they did not break as far as I know.

Recently I have been having dreams that I am pregnant again. Nursing has begun to hurt more (like it did when I was nursing my son after I became pregnant with my daughter), and I have felt a bit queasy off and on lately. I’m worried that I might be pregnant again. I suppose I should take a pregnancy test to find out for sure. I have had terrible luck with accurate results from the non digital tests so I would probably get a digital test but I don’t want to waste money if I’m just being paranoid….