Really need support

Hi ladies. I just found out Thursday I am pregnant. This pregnancy wasnt planned and I'm going through a slew of different medical issues right now I just dont know if I can physically handle this pregnancy. I support the right for every women to chose what to do with their body's because they are the ones who have to live with their decision it doesnt directly effect me at all, however I've always felt abortion wasnt something I could personally do. I had a very rough delivery with my youngest I lost ALOT of blood and dont remember much of his birth (c-section). I'm going through such a tough time and I dont know what I should do. I always let things get to me and I beat myself up about everything.. I worried the guilt of an abortion will ruin me but I also worry my body is not strong enough for another pregnancy. I have IBS on top of a very small uterus. I just really need support. My fiance is supportive but I have to make this decision and I dont know what to do. Please help and please no bashing thank you.