OMG I'm pregnant again and quite scared

I suffer from endometriosis and it took me a really long time to get pregnant of my first little boy.

He was finally born the 10th of july of 2016 and I have never used any form of contraception since then ( apart from exclusively breastfeeding it ).

I cried a lot and I had a terrible time thinking about the possibility of not being able to get pregnant so when I finally had him I promissed myself not to think about my fertility anymore.

For me it was ok if I wasn't able to get pregnant again because I already had him, so we just gave been having unprotected and not thinking about possibile pregnancies.

Last week I started to feel nauseous and weird, but my little boy had recenty had stomach flu so I just assumed that I was going to get ill.

Two days before my period was due I took a home pregnancy test that came out negative.

Then another one that came negative too and today I took the last one and there it was... A faint positive ( just like the one I got on my first pregnancy).

¡¡¡OMG!!! I'm so confused, I am happy because having a new baby is great but at the same time I feel very stressed because the first months with my eldest were really tough and I don't know if I will be able to cope with a newborn and a boy that will be 4 by that time.

I also feel a l sad because I wont have the same time to share with my eldest.

I hope everything goes well... OMG I still can't believe it has happened.

I still haven't even told my husband, I feel paralized .